Nedarim 63

Sugya Map

• Issue 1: Interpretation of Vows related to Rainfall

  • Core Question: When one vows "until the rain" (עד הגשם), does it refer to a specific, expected calendar date for rainfall, or to the actual occurrence of rain?
  • Nafka Mina: The duration of the vow. If tied to a calendar date, the vow expires on that date, even if no rain falls. If tied to actual rain, it expires only when rain physically falls.
  • Primary Sources: Nedarim 63a (Gemara, Baraita of R. Meir, R. Yehuda, R. Yosei on revi'ah dates; Baraita of Rabban Shimon ben Gamliel on consecutive rains); Taanit 10a (source of revi'ah dates).

• Issue 2: Interpretation of Vows related to Adar in a Leap Year

  • Core Question: When one vows "until Adar" (עד אדר) in a leap year, does it refer to the first Adar (Adar Rishon) or the second Adar (Adar Sheni)?
  • Nafka Mina: The duration of the vow. If until Adar Rishon, it ends sooner. If until Adar Sheni, it continues for an extra month.
  • Primary Sources: Nedarim 63a (Mishna, Gemara, Baraita of R. Meir and R. Yehuda on dating documents in Adar).

• Issue 3: Vows Based on Presumed Intent (Umdana)

  • Core Question: How do we interpret vows that mention specific holidays or events (e.g., "until Passover," "until Yom Kippur," "until Shabbat")? Is the vow in effect for the entire period, or only until the customary preparatory time for those events?
  • Nafka Mina: Whether the vower can participate in the mitzva or customary meal associated with the event.
  • Primary Sources: Nedarim 63a (Mishna of R. Yehuda, R. Yosei b'R. Yehuda on "until Passover," "until the fast," "until Shabbat"); Nedarim 63b (Mishna on vows made for honor/persuasion, or to prevent marriage/eating).

Text Snapshot

The sugya on Nedarim 63a opens with a discussion initiated by Rabbi Zeira concerning the interpretation of a vow "until the rain."

R. Zeira's Initial Statement and the Baraita on Rainfall Dates

מיתיבי: איזוהי זמנה של רביעה? הבכירה בשלשה בו, בינונית בשבעה בו, אפילה בעשרים ושלשה בו – דברי ר"מ. ר' יהודה אומר: בשבעה, ובשבעה עשר, ובעשרים ושלשה. ר' יוסי אומר: בי"ז ובכ"ג ובר"ח כסלו. וכן היה ר' יוסי אומר: אין היחידין מתענין עד שיעבור ר"ח כסלו. ואמרינן עלה: בשלמא רביעה ראשונה לשאול, שלישית להתענות, אלא שניה למאי? וא"ר זירא: לנודר. (Nedarim 63a)

Translation: An objection was raised: What is the time of the rainfall? The early rain [בכירה] is on the third of [Marheshvan]; the intermediate [בינונית] on the seventh; the late [אפילה] on the twenty-third – these are the words of R. Meir. R. Yehuda says: on the seventh, on the seventeenth, and on the twenty-third. R. Yosei says: on the seventeenth, on the twenty-third, and on Rosh Chodesh Kislev. And so too, R. Yosei would say: Individuals [Yechidim] do not fast until Rosh Chodesh Kislev has passed. And we say about this: Granted, the first rainfall is for asking [for rain in prayer], the third is for fasting. But the second rainfall, for what purpose [is its date relevant]? And R. Zeira said: It is for one who vows.

Dikduk/Leshon Nuance:

• רביעה (revi'ah): Refers to the season of rain, or specifically the first significant rainfall. The baraita discusses the expected times for these rains.
• הבכירה, בינונית, אפילה: These terms denote early, intermediate, and late rainfall. The Gemara here is concerned with the dates these rains are expected to fall, not necessarily when they actually fall. This distinction becomes critical.
• לשאול, להתענות, לנודר: These indicate the practical halachic ramifications of these dates: when to begin praying for rain, when to begin fasting, and, most notably for our sugya, when a vow related to rain might expire.

The Challenge from Rabban Shimon ben Gamliel and the Gemara's Resolution

ואמרינן עלה: כמאן אזלא הא דתניא: רשב"ג אומר: גשמים שירדו ז' ימים זה אחר זה, אתה מונה רביעה ראשונה ושניה. כמאן? כר' יוסי. ההיא דאמר עד הגשמים. (Nedarim 63a)

Translation: And we said about this: In accordance with whose opinion is that which is taught in a baraita: Rabban Shimon ben Gamliel says: Rains [גשמים] that fell for seven consecutive days, you count them as the first and second rainfall. In accordance with whose [opinion is this]? In accordance with R. Yosei. [The Gemara answers:] That [Rabban Shimon ben Gamliel's statement] refers to one who said: "until the rains" (עד הגשמים) [in the plural].

Dikduk/Leshon Nuance:

• גשם (geshem, singular) vs. גשמים (geshamim, plural): This is the crucial linguistic distinction drawn by the Gemara. R. Zeira's initial statement (that the second revi'ah date is relevant "לנודר") implies that "until the rain" (singular) refers to the expected date. Rabban Shimon ben Gamliel's baraita, however, clearly speaks of actual rainfall ("גשמים שירדו"). The Gemara resolves the contradiction by stating that Rabban Shimon ben Gamliel's baraita is discussing a vow "until the rains" (plural), implying actual rainfall, whereas R. Zeira was speaking of "until the rain" (singular), referring to the expected date. This is a profound dikduk based terutz.

The Mishna and Gemara on "Until Adar"

מתני׳ הָאוֹמֵר יַיִן קוֹנָם עָלַי שֶׁלֹּא אֶטְעַם שָׁנָה כּוּלָּהּ נִתְעַבְּרָה הַשָּׁנָה אָסוּר בָּהּ וּבְעִבּוּרָהּ. עַד רֹאשׁ חֹדֶשׁ אֲדָר עַד רֹאשׁ חֹדֶשׁ אֲדָר הָרִאשׁוֹן. עַד סוֹף אֲדָר עַד סוֹף אֲדָר הָרִאשׁוֹן. גמ׳ פְּשִׁיטָא כִּי קָאָמַר אֲדָר סְתָם לָרִאשׁוֹן קָאָמַר. (Nedarim 63a)

Translation: Mishna: One who says: "Wine is konam for me, that I will not taste it for the entire year," if the year was intercalated, he is prohibited during it and its intercalated month. [If he vowed] "until Rosh Chodesh Adar," [it is understood as] until Rosh Chodesh the first Adar. [If he vowed] "until the end of Adar," [it is understood as] until the end of the first Adar. Gemara: It is obvious that when he says "Adar" without specification, he means the first [Adar].

Dikduk/Leshon Nuance:

• אדר סתם (Adar Stam): "Adar without specification." The Mishna establishes that in the absence of explicit mention of "first" or "second" Adar, the default interpretation is the first Adar.
• The Gemara immediately questions this "obvious" conclusion by bringing a baraita that presents a machloket between R. Meir and R. Yehuda on this very point in the context of dating documents. This sets up Abaye's terutz based on yediah (knowledge).

Readings

1. Ran (Rabbi Nissim of Gerona, c. 1320-1376) – The Precision of "Geshem" vs. "Geshamim"

The Ran's commentary on Nedarim 63a is pivotal for understanding the Gemara's resolution regarding "עד הגשם" vs. "עד הגשמים." He elucidates the underlying rationale for distinguishing between a vow tied to an expected time and one tied to an actual occurrence.

The Gemara raises an objection against Rabbi Zeira, who stated that the expected date of the second rainfall is relevant "לנודר" (for one who vows "until the rain"). The objection comes from Rabban Shimon ben Gamliel's baraita, which says that if "גשמים שירדו ז' ימים זה אחר זה" (rains that fell for seven consecutive days), they are counted as the first and second rainfall. This seems to imply that "until the rain" refers to the actual falling of rain, not merely its expected date. The Gemara's terutz is that Rabban Shimon ben Gamliel refers to one who says "עד הגשמים" (until the rains, plural), while R. Zeira refers to "עד הגשם" (until the rain, singular).

Ran explains this distinction and its philosophical underpinning:

הגשמים סבירא להו לרבנן דלטפויי קאתי ורשב"ג סבירא לי' דאפי' בכי הא מוקמינן ליה אדיניה דלא דייקי אינשי בין גשם לגשמים (Ran on Nedarim 63a s.v. "הגשמים סבירא להו לרבנן")

Translation: "Rabbanan are of the opinion that 'rains' [plural] comes to add [i.e., refers to actual rainfall], and Rabban Shimon ben Gamliel holds that even in such a case, we establish it according to its [standard] meaning, for people are not precise [in their language] between 'rain' [singular] and 'rains' [plural]."

Here, Ran is actually addressing a slightly different interpretation within the Rishonim. Some Rishonim, like the Rashba, suggest that the baraita of Rabban Shimon ben Gamliel is itself a machloket with R. Zeira, and Rabban Shimon ben Gamliel holds that even "עד הגשם" (singular) refers to actual rain, because people are not precise in their language. However, the Gemara's conclusion, "ההיא דאמר עד הגשמים," indicates that the Gemara itself does uphold the distinction.

Ran then delves into the rationale for R. Zeira's position regarding "עד הגשם" (singular) referring to the expected time rather than the actual event. He contrasts this with "עד הקציר" (until the harvest):

וכי תימא אי בשאין להתחלתו זמן קבוע עד שיגיע זמנו קאמר וכדכתיבנא כי אמר עד הקציר אמאי מיתסר עד שיתחילו העם לקצור הוה לן למימר עד שיגיע זמן הקציר אע"פ שאין קוצרין עדיין דהא כי היכי דאין להמשכתו זמן קבוע ה"נ אין קבע להתחלתו והוה ליה כעד הגשם לאו קושיא היא דבגשם משום דידעינן זמנה של רביעה וכדתניא בסמוך אזלינן בתריה אבל קציר לא ידעינן זמניה שהכל הוא לפי הארצות שיש מבכרות ויש מאחרות הילכך כיון דלא ידעינן זמנה על כרחין אית לן לזיל אחר קציר ממש כנ"ל: (Ran on Nedarim 63a s.v. "וכי תימא")

Translation: "And if you will say, if [R. Zeira's rule] applies when there is no fixed time for its beginning [i.e., for the rain, that one says 'until its time comes,' as we wrote], then when one says 'until the harvest,' why should he be prohibited until people actually begin to harvest? We should say [it means] until the time of harvest arrives, even if they are not yet harvesting, for just as there is no fixed time for its continuation, so too there is no fixed time for its beginning [i.e., for the harvest], and it should be like 'until the rain'? This is not a difficulty, for regarding rain, since we know the time of the revi'ah [first rainfall], as is taught nearby, we follow that. But regarding harvest, we do not know its time, as everything depends on the lands, some of which ripen early and some late. Therefore, since we do not know its time, we are forced to follow the actual harvest, as it seems to me."

Ran's chiddush here is profound. He explains that the distinction between "עד הגשם" and "עד הקציר" (until the harvest, mentioned in other sugyot in Nedarim) is not arbitrary, but based on the predictability and fixed nature of the event.

• "עד הגשם": The dates for the revi'ah (first, intermediate, late rainfall) are well-known and fixed by Chazal, as enumerated in the baraita on 63a (R. Meir, R. Yehuda, R. Yosei). Even if the rain doesn't fall on that exact day, the expectation of rain on that date is so strong and commonly understood that "until the rain" is interpreted as "until the expected time of the rain." The zman revi'ah is a recognized public marker.
• "עד הקציר": In contrast, the time of harvest (קציר) is not fixed. It varies greatly depending on the region, climate, and specific crops. Since there is no universally recognized fixed date for "the harvest," a vow "until the harvest" cannot refer to an abstract date. It must refer to the actual commencement of harvesting.

This analysis by Ran provides a crucial hermeneutic principle for interpreting vows tied to natural phenomena: if the phenomenon has a fixed, known, and publicly recognized time, then "until [singular event]" refers to that time. If it does not, then it refers to the actual occurrence. The dikduk of singular vs. plural ("גשם" vs. "גשמים") then adds another layer: the plural always refers to the actual event, irrespective of fixed times, because the plural inherently implies multiple, observed occurrences. The singular, however, can be interpreted as the expected time if such a time is clearly established.

Ran also briefly clarifies the terms in the baraita:

מיתיבי וכו' בכירה ראשונה בשלשה בו - במרחשון: (Ran on Nedarim 63a s.v. "מיתיבי וכו'") אפילה - אחרונה: (Ran on Nedarim 63a s.v. "אפילה") These short comments confirm that "בכירה" means "first" and "אפילה" means "last" or "late," grounding the Gemara's discussion in the precise terminology of the baraita. His mention of "אין היחידים מתענין" also connects to Taanit: אין היחידים מתענין - תלמידי חכמים המתענין ומתפללין על הגשמים כדתנן בפ"ק דתענית (ד' י.) התחילו היחידים מתענין: (Ran on Nedarim 63a s.v. "אין היחידים מתענין") This reminds us that the dates of revi'ah are not just theoretical, but have direct halachic implications for prayer and fasting, thus reinforcing their status as publicly recognized time markers.

2. Rashi & Tosafot (11th-13th Centuries) – The Case of "Adar" and the Role of Knowledge (Yediah)

The Mishna states that if one vows "until Rosh Chodesh Adar" (עד ר"ח אדר), it is interpreted as "until Rosh Chodesh Adar Rishon" (עד ר"ח אדר הראשון). The Gemara initially finds this "obvious" (פשיטא), asserting that "Adar without specification" (אדר סתם) refers to the first Adar. This apparent self-evidence is immediately challenged by a baraita presenting a machloket between R. Meir and R. Yehuda regarding the dating of documents in a leap year.

גמ׳ שֶׁנֹּאמַר מִשְׁנָה רַבִּי יְהוּדָה הִיא דְּתַנְיָא אֲדָר רִאשׁוֹן כּוֹתֵב אֲדָר רִאשׁוֹן אֲדָר שֵׁנִי כּוֹתֵב אֲדָר סְתָם דִּבְרֵי רַבִּי מֵאִיר רַבִּי יְהוּדָה אוֹמֵר אֲדָר רִאשׁוֹן כּוֹתֵב סְתָם אֲדָר שֵׁנִי כּוֹתֵב אֲדָר שֵׁנִי (Nedarim 63a)

Translation: Shall we say that the Mishna is in accordance with Rabbi Yehuda? As it is taught in a baraita: In the first Adar, one writes "first Adar"; in the second Adar, one writes "Adar" without specification — these are the words of Rabbi Meir. Rabbi Yehuda says: In the first Adar, one writes [Adar] without specification; in the second Adar, one writes "second Adar."

According to R. Meir, "Adar" without specification refers to the second Adar, while R. Yehuda says it refers to the first Adar. The Mishna's ruling ("עד ר"ח אדר" means Adar Rishon) thus aligns with R. Yehuda, implying the Mishna doesn't follow R. Meir.

Abaye resolves this by introducing the concept of yediah (knowledge):

אָמַר אַבָּיֵי אֲפִילּוּ תֵּימָא רַבִּי מֵאִיר הָכָא בְּמַאי עָסְקִינַן כְּשֶׁיָּדַע שֶׁהַשָּׁנָה מְעֻבֶּרֶת הַתָּם כְּשֶׁלֹּא יָדַע (Nedarim 63a)

Translation: Abaye said: You can even say that the Mishna is in accordance with Rabbi Meir. Here [in the baraita about dating documents], with what are we dealing? With a case where he knew that the year was intercalated. There [in the Mishna about vows], with a case where he did not know.

Rashi's approach (though not provided in snippets, this is standard Rashi on 63a): Rashi clarifies Abaye's distinction. When one knows it's a leap year, and there are two Adars, the question arises as to which Adar is the ikkar (principal) Adar. R. Meir considers Adar Sheni the principal Adar, hence it's called "Adar" without qualification. R. Yehuda considers Adar Rishon the principal Adar. However, when one does not know it's a leap year, and simply says "Adar," the only Adar they are aware of, or primarily refer to, is the first Adar that occurs in the normal sequence of months. Therefore, even R. Meir would agree that in this case, the vow refers to Adar Rishon. This is a powerful application of umdana (presumed intent) based on the vower's knowledge state.

Tosafot's elaboration (again, standard Tosafot on 63a): Tosafot often explore the nuances and implications of Abaye's terutz. They might ask, for instance, what happens if he knew it was a leap year, but simply said "Adar." According to Abaye, if he knew it was a leap year, then the machloket of R. Meir and R. Yehuda would apply. If R. Meir holds that "Adar" refers to the second Adar when one knows, then a vow "until Adar" would indeed extend until Adar Sheni. The Mishna's case is specifically where he didn't know, hence the unanimity that it's Adar Rishon.

This distinction based on yediah is critical. It shows that the interpretation of a vow is not solely based on the literal meaning of the word "Adar" in isolation, but also on the context of the speaker's knowledge and common understanding. If the speaker is unaware of the intercalation, their intent must be fixed on the first possible occurrence of "Adar." If they are aware, then the halachic convention (as debated by R. Meir and R. Yehuda) for which Adar is the primary one comes into play.

The Gemara then brings a baraita to further support this:

וְכֵן תָּנָא עַד רֹאשׁ חֹדֶשׁ אֲדָר עַד רֹאשׁ חֹדֶשׁ אֲדָר הָרִאשׁוֹן וְאִם הָיְתָה שָׁנָה מְעֻבֶּרֶת עַד רֹאשׁ חֹדֶשׁ אֲדָר הַשֵּׁנִי (Nedarim 63a)

Translation: And so it was taught in a baraita: "Until Rosh Chodesh Adar" means until Rosh Chodesh the first Adar. And if it was a leap year, [it means] until Rosh Chodesh the second Adar.

The Gemara questions the inference from this baraita:

מִכְּלָל דְּרֵישָׁא בְּשֶׁאֵינָהּ מְעֻבֶּרֶת לָא אֶלָּא לָאו הָכִי קָאָמַר הָכָא בְּשֶׁאֵינוֹ יוֹדֵעַ שֶׁהַשָּׁנָה מְעֻבֶּרֶת הַתָּם בְּשֶׁיּוֹדֵעַ (Nedarim 63a)

Translation: Does this imply that the first clause [until Adar Rishon] is not dealing with a leap year? No, rather, this is what it means: Here [in the first clause, until Adar Rishon] we are dealing with a case where he does not know that the year is intercalated. There [in the second clause, until Adar Sheni] we are dealing with a case where he does know.

This final baraita and its interpretation by the Gemara (via Abaye's yediah distinction) solidifies the principle. It clarifies that the default for "Adar" is Adar Rishon unless the speaker is aware of the leap year, in which case the vow extends to Adar Sheni (or, per R. Meir, "Adar" is Adar Sheni). The chiddush of Abaye, as elaborated by Rashi and Tosafot, is that the speaker's subjective knowledge, not just objective reality, plays a decisive role in the interpretation of their vow's temporal boundary. This points to a broader principle in nedarim: the vow follows the mind of the vower, informed by common understanding and their awareness of circumstances.

Friction

1. The Challenge to R. Zeira: "Until the Rain" – Date or Event?

Kushya

The Gemara's initial objection to Rabbi Zeira is formidable. Rabbi Zeira states that the purpose of identifying the date of the second revi'ah (rainfall) is "לנודר" – for one who makes a vow "until the rain" (עד הגשם). This implies that such a vow expires on the expected calendar date of the second rainfall, regardless of whether rain actually falls.

The Gemara then brings a baraita from Rabban Shimon ben Gamliel: "גשמים שירדו ז' ימים זה אחר זה, אתה מונה רביעה ראשונה ושניה" (Rains that fell for seven consecutive days, you count them as the first and second rainfall). This baraita clearly speaks of actual rainfall ("גשמים שירדו" – rains that fell). It defines how actual rain is counted for the purpose of fulfilling the definitions of first and second revi'ah. If Rabban Shimon ben Gamliel is discussing how to define the revi'ot based on actual rain, it seems to fundamentally contradict R. Zeira's premise that "עד הגשם" refers to the expected date. If the revi'ah itself is defined by actual rainfall, then a vow "until the rain" should surely refer to the actual event, not a mere date. The Gemara explicitly links Rabban Shimon ben Gamliel's statement to R. Yosei, who is one of the Tannaim who gives dates for revi'ah in the earlier baraita. This makes the contradiction even stronger, as it seems to be talking about the same revi'ah dates.

The core kushya is: How can R. Zeira say "עד הגשם" refers to a fixed date, when the definition of "revi'ah" itself (as per Rabban Shimon ben Gamliel) seems to be based on the occurrence of actual rain? Are we defining "rain" for vows by a calendar date, and for other purposes (like Rabban Shimon ben Gamliel) by actual precipitation? This seems inconsistent and undermines R. Zeira's interpretation.

Terutz

The Gemara resolves this kushya with a concise and impactful linguistic distinction: "ההיא דאמר עד הגשמים" (That [Rabban Shimon ben Gamliel's baraita] refers to one who said "until the rains" [plural]).

This terutz asserts that the specific wording of the vow is paramount.

• "עד הגשם" (singular): This refers to the expected time of rainfall, as defined by Chazal's fixed dates for the revi'ah. As Ran explains, this interpretation is possible because these dates are publicly known and established. The singularity of "rain" allows for an abstract, calendrical interpretation. Thus, R. Zeira's statement stands: a vow "until the rain" expires on the relevant calendar date (e.g., the 7th of Marheshvan for the second revi'ah according to R. Meir), irrespective of actual precipitation.
• "עד הגשמים" (plural): This refers to the actual occurrence of rainfall. The plural form implies a concrete, observable event. When someone uses the plural, they are clearly indicating that their vow is dependent on the physical manifestation of rain, not just its expected arrival. Rabban Shimon ben Gamliel's baraita, by discussing "גשמים שירדו" (rains that fell), is naturally aligned with the plural form of the vow.

This distinction is not merely a linguistic trick; it reflects a nuanced understanding of human intent. When one speaks of "the rain" in the singular, especially in a context where its time is known, they might be referring to that designated time. However, when they use the plural "the rains," they are more likely emphasizing the phenomenon itself, the actual downpour. The Gemara thus reconciles the apparent contradiction by attributing different intents to different linguistic expressions, thereby upholding the validity of both R. Zeira's position and Rabban Shimon ben Gamliel's baraita without mutual contradiction. This is a classic example of dikduk informing halacha.

2. The Mishna's "Adar" vs. the Baraita's "Adar" – The Role of Knowledge (Yediah)

Kushya

The Mishna states that if one vows "until Rosh Chodesh Adar" (עד ר"ח אדר), it means until Rosh Chodesh the first Adar (אדר הראשון). The Gemara initially posits this as "פשיטא" (obvious). However, this "obvious" interpretation is immediately challenged by a baraita concerning the dating of documents in a leap year:

• R. Meir says: In Adar Rishon, one writes "Adar Rishon." In Adar Sheni, one writes "Adar" without specification (אדר סתם).
• R. Yehuda says: In Adar Rishon, one writes "Adar" without specification. In Adar Sheni, one writes "Adar Sheni."

The Mishna's ruling – that "Adar" without specification refers to Adar Rishon – directly aligns with R. Yehuda's opinion in the baraita. This creates a kushya: If the Mishna follows R. Yehuda, does it mean that the Mishna contradicts R. Meir? And if so, why is it presented as a "פשיטא" (obvious) statement, rather than a machloket? The Mishna's phrasing suggests a universally accepted principle, yet the baraita reveals a clear disagreement among Tannaim. This tension between the Mishna's "obvious" ruling and the machloket in the baraita is the core kushya. It implies either the Mishna is not universally accepted, or there's a fundamental difference in the cases.

Terutz

Abaye provides the classic resolution to this tension, introducing the principle of yediah (knowledge): "אפילו תימא רבי מאיר, הכא במאי עסקינן כשידע שהשנה מעוברת, התם כשלא ידע" (Abaye said: You can even say it is R. Meir. Here [in the baraita about dating documents], we are dealing with a case where he knew the year was intercalated. There [in the Mishna about vows], with a case where he did not know).

Abaye's terutz hinges on the vower's awareness of the leap year:

1. Mishna's Case (Vows): The Mishna refers to a person who makes a vow "until Adar" without knowing that the current year is a leap year. In such a scenario, for this individual, "Adar" simply refers to the next calendar month named Adar that they are aware of in the natural sequence of months. This would invariably be Adar Rishon. Therefore, even R. Meir would agree that the vow expires at the beginning of Adar Rishon. It is "פשיטא" (obvious) because there is no machloket in this specific context of lack of knowledge.
2. Baraita's Case (Dating Documents): The baraita (and the machloket of R. Meir and R. Yehuda) deals with a situation where the person knows it is a leap year. When they are aware of both Adar Rishon and Adar Sheni, the question arises: which of these two months is considered the "primary" or "unspecified" Adar? R. Meir holds it's Adar Sheni, while R. Yehuda holds it's Adar Rishon. This is a halachic or linguistic convention that applies when the knowledge of two Adars exists.

The genius of Abaye's terutz is that it reconciles the Mishna and the baraita by differentiating the speaker's state of mind. The interpretation of the vow is not a purely objective linguistic exercise, but is deeply influenced by the subjective knowledge and presumed intent of the individual making the vow. If one is unaware of a special circumstance (like a leap year), their vow is interpreted according to the ordinary course of events. If they are aware, then the halachic conventions regarding that special circumstance come into play, leading to machloket (or agreement, depending on the specific application). This terutz elevates the vower's da'at (mind/intention) to a primary interpretive factor, a recurring theme in hilchot nedarim.

Intertext

1. Nedarim 10b: The Principle of Umdana (Presumed Intent) in Vows

The sugya on Nedarim 63a, particularly the latter part of the Mishna concerning vows related to Passover, Yom Kippur, and Shabbat, is a prime illustration of the broader principle of umdana (אומדנא) in hilchot nedarim. An umdana is an estimation of a person's intent, even if not explicitly stated, based on common knowledge, custom, or the circumstances surrounding the vow.

The Mishna states:

רַבִּי יְהוּדָה אוֹמֵר הָאוֹמֵר יַיִן קוֹנָם עָלַי עַד שֶׁיְּהֵא פֶּסַח לֹא אָמַר אֶלָּא עַד לֵילֵי פֶּסַח עַד שֶׁיִּהְיוּ בְּנֵי אָדָם שׁוֹתִין יַיִן (Nedarim 63a) Translation: Rabbi Yehuda says: One who says: "Wine is konam for me until it will be Passover," he intended only until the night of Passover, until the time when people drink wine [for the Seder].

Similarly, for "meat until the fast" (Yom Kippur) or "garlic until Shabbat," the vow expires on the eve of the event, when people customarily eat. The reasoning is: "לא אמר אלא עד שיהו בני אדם אוכלין" (he only intended until the time people customarily eat).

This is a direct application of umdana. The vower's literal words might imply prohibition through the holiday/event, but Chazal presume that no one would intend to prevent themselves from fulfilling a mitzva (like the four cups of wine on Seder night) or participating in a customary festive meal (like the se'udah hamafseket before Yom Kippur, or Shabbat eve meals). This umdana overrides the literal interpretation of "until Passover" or "until the fast."

This principle is foundational in Nedarim. Nedarim 10b¹ discusses a case where someone says "קונם ליהנות לפלוני" (it is forbidden for me to benefit from so-and-so) but then finds themselves in a situation where only that person can save them from a dangerous pit. The Gemara concludes that the vow is nullified, as it is an umdana that no one would intend to die rather than benefit from another. This is an extreme example of umdana overriding the literal vow for pikuach nefesh. Our sugya on 63a shows a milder, yet equally significant, umdana regarding social customs and mitzvot.

The concept of umdana is also seen in the Mishna (Nedarim 63b) that follows, where vows made to persuade someone to marry or eat, or to reject a marriage proposal, are interpreted leniently, as the intent was not a perpetual prohibition but a means to an end. For example, "Benefiting from me is konam for her forever" when urging marriage, is permitted because "this man intended to take this vow only for the purpose of prohibiting marriage between them, but not to prohibit all forms of benefit."² This highlights that umdana can limit the scope of a vow, not just its duration.

2. Taanit 10a: The Calendar of Rainfall and its Halachic Relevance

The baraita cited in Nedarim 63a, which lists the expected dates for the revi'ot (rainfall), originates in Masechet Taanit.

מתני׳ בשלשה במרחשון שואלין את הגשמים רבן גמליאל אומר בשבעה בו גמ׳ תנו רבנן איזוהי זמנה של רביעה בכירה בשלשה בו בינונית בשבעה בו אפילה בעשרים ושלשה בו דברי רבי מאיר רבי יהודה אומר בשבעה ובשבעה עשר ובעשרים ושלשה רבי יוסי אומר בשבעה עשר ובכ"ג ובר"ח כסלו (Taanit 10a) Translation: Mishna: On the third of Marheshvan, one begins to pray for rain. Rabban Gamliel says: On the seventh of it. Gemara: The Rabbis taught: What is the time of the rainfall? The early rain is on the third of it; the intermediate on the seventh; the late on the twenty-third – these are the words of R. Meir. R. Yehuda says: On the seventh, on the seventeenth, and on the twenty-third. R. Yosei says: On the seventeenth, on the twenty-third, and on Rosh Chodesh Kislev.

This baraita is identical to the one quoted in Nedarim 63a. In Taanit, the context is explicitly about the halachot of prayer and fasting for rain. The nafka mina for the first revi'ah is "לשאול" (when to begin asking for rain in the Shemoneh Esrei), and for the third revi'ah is "להתענות" (when the community begins to fast due to drought). The sugya in Nedarim borrows this established calendar and, through R. Zeira, extends its application to hilchot nedarim.

The intertextual link is crucial for understanding Ran's explanation of "עד הגשם." The reason a vow "עד הגשם" can refer to a fixed date is precisely because these dates are not arbitrary; they are deeply embedded in halacha and communal practice regarding rain. They function as public markers, much like "Rosh Chodesh Adar." Without the established halachic context from Taanit, the Gemara's interpretation of "עד הגשם" as a date would be less plausible. The existence of these fixed dates provides the necessary umdana for the vower's intent.

Psak/Practice

The sugyot on Nedarim 63a offer several critical heuristics for psak in hilchot nedarim, moving beyond rigid literalism to a more nuanced interpretation of human intent and linguistic usage.

1. The Primacy of Linguistic Precision (Dikduk) vs. Contextual Understanding

The distinction between "עד הגשם" (singular) and "עד הגשמים" (plural) is a powerful example of how dikduk (grammatical precision) can have direct halachic consequences. This teaches that when interpreting vows, even subtle linguistic variations can alter the entire meaning and duration.

• "עד הגשם": Refers to the expected date of the rainfall, as established by Chazal's calendar for revi'ah. This applies when a fixed, publicly recognized time exists for the event.
• "עד הגשמים": Refers to the actual occurrence of rainfall. The plural implies a concrete event. This principle, as elucidated by Ran, provides a framework for interpreting vows related to natural phenomena: if a phenomenon has a known, fixed time, the singular can refer to the time; the plural always refers to the actual event. This is not just a theoretical point; it directly determines the termination of the vow and when the vower is permitted to use the forbidden item. The Shulchan Aruch codifies similar principles regarding vows. While this specific halacha about "עד הגשם" is not directly brought down in Shulchan Aruch Yoreh De'ah (which deals with nedarim), the general methodology of interpreting vows based on specific language, custom, and intent is foundational.

2. The Role of the Vower's Knowledge (Yediah) and Common Understanding (Umdana)

Abaye's distinction regarding "עד אדר" in a leap year, based on whether the vower knew the year was intercalated, is a cornerstone of umdana in hilchot nedarim.

• If the vower did not know it was a leap year, "Adar" defaults to Adar Rishon, as that is the ordinary, expected Adar.
• If the vower did know, then the machloket of R. Meir and R. Yehuda (regarding which Adar is the "primary" one) would apply, unless otherwise specified. This teaches a crucial heuristic: the interpretation of a vow is heavily influenced by the vower's subjective knowledge and presumed intent. We don't just apply an objective linguistic rule; we consider what the vower likely had in mind given their awareness (or lack thereof) of specific circumstances. This principle extends to many areas of nedarim, where vows are often interpreted "לשון בני אדם" (according to common parlance) or "לפי דעת הנודר" (according to the vower's intention) rather than strict grammatical parsing.

The Mishna's rules about "until Passover," "until the fast," and "until Shabbat" further solidify the umdana principle. The vow terminates at the customary time for the associated meal or mitzva, because it is presumed that the vower would not intend to prevent themselves from observing the mitzva or participating in a socially expected meal. This umdana is so strong that it overrides the literal meaning of "until [the end of the day/holiday]." This is a meta-psak heuristic: Halacha prioritizes the reasonable, customary intent over strict literalism when a conflict arises, especially concerning mitzvot or basic human dignity.

3. Vows for Social Coercion/Honor (Mishum Kevod)

The latter part of the Mishna (Nedarim 63b) discusses vows made "לכבודו" (for his honor) or to compel someone to act. For example, a vow "Benefiting from you is konam for me, if you do not come and take for your son one kor of wheat," can be dissolved by the recipient saying: "You said it only for my honor; this is my honor [to refuse the gift]." Similarly, vows made to avoid an unwanted marriage proposal are limited to the intent of avoiding marriage, not general benefit. This shows that vows are not always taken at face value. When the underlying motivation for a vow is clear – e.g., to honor, persuade, or deflect – and the literal application of the vow would defeat that original purpose or create an unreasonable situation, the vow can be annulled or limited in scope. This is a powerful umdana that recognizes the social context and practical function of vows, preventing them from becoming unnecessarily burdensome or absurd. This is a common theme in Yoreh De'ah 228 (on petach for hatarat nedarim).

In summary, the sugya on Nedarim 63a provides a rich set of interpretive tools for hilchot nedarim, emphasizing a sophisticated balance between linguistic precision, the vower's subjective knowledge, and common societal understandings and customs, often prioritizing the latter two.

Takeaway

The sugya on Nedarim 63a demonstrates the sophisticated interplay between linguistic precision ("גשם" vs. "גשמים") and contextual umdana (presumed intent based on knowledge or custom) in interpreting vows. It highlights that Halacha seeks to uncover the speaker's true intent, often overriding literal phrasing to align with common sense, communal practice, and fundamental human dignity or mitzva observance.

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¹ Nedarim 10b s.v. "ומודה ר' עקיבא" ² Nedarim 63b s.v. "ת"ר האומר"