Chullin 115

Sugya Map & Snapshot

Sugya Map

The sugya in Chullin 115a confronts the ontological status of objects generated through halakhic transgression (ma’aseh issur). The Gemara seeks to establish whether a behavioral prohibition (gavra) inherently transfers a physical status of prohibition (issur cheftza) to its physical output.

• Primary Issue: Does the overarching principle of “Kol she-ti’avti lakh harei hu be-val tochal” (Anything I have made abominable to you is under a negative commandment of eating) apply to the products of forbidden actions?
• Nafke Minhatan (Practical Ramifications):
  1. The permissibility of food cooked on Shabbat (ma’aseh Shabbat).
  2. The consumption or benefit of agricultural products generated through agricultural prohibitions (e.g., plowing with mixed species, muzzling an animal during threshing, or sowing kilayei zera'im).
  3. The permissibility of an animal slaughtered in violation of oto ve-et beno (slaughtering a parent animal and its offspring on the same day).
• Primary Sources: Chullin 115a-b, Exodus 31:14, Deuteronomy 22:9, Deuteronomy 22:10, Leviticus 19:19, Exodus 12:9, Deuteronomy 12:24-25.

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Text Snapshot

The Gemara’s initial conceptual pivot hinges on the interpretation of Exodus 31:14:

"קֹדֶשׁ הִיא לָכֶם" "It is holy unto you."

The Gemara executes a precise syntactic exclusion:

"היא קודש, ואין מעשה קודש" "It [the day of Shabbat itself] is holy, but the product of actions performed on it is not holy."

Furthermore, regarding the prohibition of diverse kinds in a vineyard (kilayei ha-kerem), the Gemara analyzes the phonetics of Deuteronomy 22:9:

"פֶּן־תִּקְדַּשׁ הַמְלֵאָה" "Lest the fullness of the seed be forfeited."

The Sages read this through an acoustic-semantic shift:

"פן תוקד אש" "Lest it be burned in fire."

This indicates that while kilayei ha-kerem requires destruction by fire and is forbidden for both consumption and benefit, other agricultural mixtures (kilayei zera'im) remain permitted because the Torah specifically localized the issur hana'ah (prohibition of benefit) to the vineyard.

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Readings

The Ontological Status of Transgression: Rashi, Meiri, and the Steinsaltz Clarification

To unpack the mechanics of ma’aseh Shabbat, we must examine how the commentators frame the Gemara’s initial assumption. Rashi defines the proposed biblical prohibition of ma'aseh Shabbat as follows:

"מעשה שבת - כגון המבשל בשבת ליתסרו באכילה לכל ישראל דהא הזהרתיך לתעבו ולהתרחק ממנו ואנן תנן במזיד לא יאכל הוא משום קנס אבל אחרים אוכלין בפ"ק (לעיל חולין טו.):" "The product of Shabbat—such as one who cooks on Shabbat—should be forbidden for consumption to all of Israel, because I have warned you to abominate it and distance yourself from it. Yet we learned in a Mishnah that if one cooked intentionally, he may not eat it as a penalty, but others may eat it." [^1]

Rashi highlights the tension between the Gemara's initial biblical proposal and the established rabbinic framework. If ma'aseh Shabbat fell under the rubric of “kol she-ti’avti lakh,” the food would become an objective cheftza of issur (forbidden object) for the entire Jewish people. Instead, the halakha treats it as a localized gavra restriction: a punitive measure (kenas) applied strictly to the transgressor, leaving the object permitted to others.

The Meiri reinforces this distinction by decoupling the metaphysical gravity of the sin from the physical status of the object:

"מעשה שבת כגון המבשל בשבת וכיוצא בו אע"פ שנתחייב העושה בנפשו מעשה שלו מותר על הצדדין שביארנו בפרק ראשון:" "The product of Shabbat, such as cooking on Shabbat and the like: even though the transgressor has incurred a capital liability, the product of his action remains permitted under the parameters we explained in the first chapter." [^2]

The Meiri's formulation introduces a sharp conceptual asymmetry: a person can perform an act so severe that it carries the death penalty (chayavei mitot beit din), yet the physical output of that capital crime remains entirely kosher. The severity of the act (gavra) does not bleed into the material reality of the object (cheftza).

Steinsaltz clarifies the target of the Gemara's challenge to Rav Ashi’s principle:

"מעתה גם מעשה שבת (הדברים הנעשים בחילול שבת, וכגון שהתבשלו בשבת), ליתסרו [שייאסרו] לאכילה המאכלים שהתבשלו בשבת, ולא רק לזה שבישל (במזיד), דהא [שהרי] בכלל "כל ש תיעבתי לך" הוא, והרי זה שלא כדברי רב אשי!" "From this point, even the product of Shabbat (things done through the desecration of Shabbat, such as those cooked on Shabbat) should be forbidden for consumption—meaning the foods cooked on Shabbat—and not only to the one who cooked (intentionally). For behold, it is included in the general rule of 'whatever I have made abominable to you,' which would contradict the words of Rav Ashi!" [^3]

Without the specific biblical exclusion of "hi kodesh", Rav Ashi’s rule would have elevated ma’aseh Shabbat to a full-fledged biblical dietary prohibition.

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The Ritva's Dialectic: Sifting Eating from Benefit

The Ritva addresses a structural vulnerability in the Gemara’s derivation. If the verse "hi kodesh" Exodus 31:14 acts as an exclusionary mechanism to permit ma'aseh Shabbat, what exactly does it permit?

"אמר קרא היא קודש ואין מעשה קודש. וא"ת ודלמא אתא קרא למישרי בהנאה אבל באכילה אסור משום לא תאכל תועבה וכדפרכינן ליה גבי כלאי זרעים וי"ל דלהיתר הנאה כתיב לכם שלכם תהא: וכי כתיב קודש הוא למישרי אף באכילה:" "The verse states 'it is holy,' meaning it itself is holy, but its product is not holy. And if you say: perhaps the verse only comes to permit benefit, but consumption remains forbidden due to 'you shall not eat any abominable thing,' as we challenge regarding diverse seeds? One can answer: to permit benefit, it is written 'to you' (lachem)—meaning it shall be yours. And when it writes 'it is holy,' it comes to permit even consumption." [^4]

The Ritva identifies a two-tiered system of permissibility:

1. Hana'ah (Benefit): Derived from the word "lachem" (unto you). This phrase secularizes the day's utility, ensuring that the physical benefits of Shabbat actions remain within human commerce and enjoyment.
2. Achilah (Consumption): Derived from the phrase "hi kodesh" (it is holy). By limiting holiness to the day itself, the Torah prevents the holiness of the day from crystallizing as a physical prohibition within food prepared on that day.

Without this dual-layered exclusion, we would have bifurcated the status of ma'aseh Shabbat: permitting benefit but prohibiting eating under the sweeping shadow of “kol she-ti’avti.”

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Reish Lakish vs. Rabbi Yochanan: The Mechanics of Basar Be-Chalav

On Chullin 115b, the Gemara shifts from agricultural and Shabbat prohibitions to the derivation of the eating and benefit prohibitions of meat and milk (basar be-chalav).

Reish Lakish anchors the eating prohibition in the laws of the Paschal sacrifice Exodus 12:9:

"אל תאכלו ממנו נא ובשל מבשל" "Do not eat of it raw, or boiled in any way."

He argues that the redundant phrasing "bashel mevushal" (boiled in any way) serves to include another forbidden form of cooking: meat cooked in milk.

Rabbi Yochanan rejects this, championing the derivation of Rabbi Yehuda HaNasi from the redundant prohibition of blood in Deuteronomy 12:25:

"לא תאכלנו למען ייטב לך" "You shall not eat it, that it may go well with you."

Since the previous verse already prohibited blood, this redundancy is applied to basar be-chalav via the hermeneutic of davar ha-lamed me-inyano (a matter derived from its context). The context of these verses deals with redeemed consecrated animals (kodashim she-nifdu), which occupy a dual identity: they are permitted for consumption like non-sacred meat, yet remain prohibited for shearing and labor like consecrated animals. This hybrid nature mirrors basar be-chalav, which consists of two distinct, permitted substances (meat and milk) that generate a severe prohibition when combined.

This dispute is not merely exegetical; it reflects a deep debate over the conceptual essence of basar be-chalav:

• According to Reish Lakish, the prohibition is fundamentally rooted in the action of cooking (mevushal). The food is prohibited because it was subjected to a forbidden process of thermal integration. Thus, the source must be derived from Pesach—a sugya governing how food is processed and cooked.
• According to Rabbi Yochanan/Rabbi Yehuda HaNasi, the prohibition is a dietary hybridity (shnei minim). The prohibition does not stem merely from the act of cooking, but from the creation of a new, prohibited mixture of elements. Thus, it is derived from the laws of redeemed holy things, which embody structural hybridity.

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The Acharonim: Cheftza vs. Gavra in Ma'aseh Shabbat

The Kehillat Yaakov (Steipler Gaon) and Chiddushei Rabbeinu Chaim (Halevi) analyze the nature of ma'aseh Shabbat through the lens of our sugya.

If the Gemara requires a specific verse ("hi kodesh") to teach that ma'aseh Shabbat is biblically permitted, this implies that without this verse, the food would have been classified as an issur cheftza (forbidden substance). The Steipler asks: how could a behavioral transgression on Shabbat create a physical prohibition in food?

He explains that there are two distinct ways to conceptualize an issur:

1. Essential Issur: The Torah defines a substance (e.g., pork, blood) as inherently non-kosher.
2. Action-Induced Issur: The Torah prohibits a substance because of the illicit process through which it was brought into its current state (e.g., neveilah, basar be-chalav, or ma'aseh Shabbat).

The Gemara’s initial proposal was that “kol she-ti’avti lakh” acts as a meta-generator of action-induced issurei cheftza. Any time a person violates a negative commandment to produce or alter a physical object, that object absorbs the flavor of the sin, transforming it into a forbidden substance. The exclusion of "hi kodesh" is a fundamental structural limit: it establishes that Shabbat stands outside this generator. Shabbat is a sanctuary in time; its sanctity and its violations do not physically manifest as an issur cheftza in the material world.

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Friction

The Hermeneutic of Tzad Hashaveh: Rav Ashi vs. Rav Mordekhai

The most intense logical friction in this sugya occurs during the Gemara's attempt to derive the prohibition of benefit (issur hana'ah) for basar be-chalav using a tzad hashaveh (common element) from orlah and chametz on Pesach.

The logical steps of the Gemara's dialectic unfold as follows:

                  [Orlah]                 [Chametz]
                     |                        |
             (No time of fitness)       (Punished by Karet)
                     \                        /
                      \                      /
                       v                    v
                        [Tzad Hashaveh]
                 (Prohibited for consumption
                     and for benefit)
                            |
                            v
                    [Basar Be-Chalav]

1. The Base Case (Orlah): Prohibited for benefit.
   • Refutation: Orlah is unique because it never had a "time of fitness" (sha'at hakeret) before its prohibition. Meat and milk, by contrast, were permitted prior to being cooked together.
2. The Second Case (Chametz on Pesach): Had a time of fitness, yet is prohibited for benefit.
   • Refutation: Chametz is unique because its consumption is punished by karet (spiritual excision). Basar be-chalav carries no such penalty.
3. The Synthesis (Tzad Hashaveh): We combine orlah and chametz. The common denominator is that both are dietary prohibitions that forbid both consumption and benefit. Therefore, we should apply this same standard to basar be-chalav.
4. Rav Ashi’s Refutation:

   "איכא למיפרך: מה לילד וחמץ שכן גדולי קרקע!" "This can be refuted: what is unique about orlah and chametz is that they both grow from the ground!" [^5] Meat and milk do not grow from the ground; therefore, the derivation fails.

5. The Introduction of Kilayei Kerem: The Gemara introduces kilayei ha-kerem (diverse kinds in a vineyard) to break the gidulei karka objection, but then realizes that kilayei kerem is also a product of the ground.

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Unraveling the Methodology of Pirka (Refutation)

This dialectic exposes a fundamental debate between Rav Ashi and Rav Mordekhai (quoting Reish Lakish) regarding the mechanics of analogical refutation.

Is the Tzad Hashaveh refuted?
  |
  +---> Rav Ashi: YES. An external case (Neveilah) or any shared physical trait (Gidulei Karka) can break the analogy.
  |
  +---> Rav Mordekhai (Reish Lakish): NO. You can only refute a Tzad Hashaveh using factors inherent to the source cases themselves, or through a strict a fortiori (kal va-chomer) framework.

Rav Ashi maintains that a tzad hashaveh is an inductive generalization. If we assert that a certain class of prohibitions (severe dietary laws) carries an issur hana'ah, any counterexample from outside that class—such as neveilah (which is a severe dietary law but permitted for benefit)—shatters the generalization. Furthermore, any shared physical property among the source cases (such as being gidulei karka) restricts the scope of the rule, preventing it from applying to animal products like meat and milk.

Rav Mordekhai, in the name of Reish Lakish, presents a different view:

"כל דאתי מצד השוה, בכולהו פירכין פרכינן, לבר מפרכא דחדא" "For any analogy derived from a common element, we can refute it with any refutation, except for a refutation that applies to only one of the sources." [^6]

Under Reish Lakish’s framework, a tzad hashaveh is not a simple inductive generalization. Rather, it is a hermeneutical elimination process. When we combine two sources to derive a law for a third, we are asserting that the law is produced by the conceptual commonality of the sources, not their individual eccentricities.

Therefore, you cannot refute a tzad hashaveh by pointing to an external case like neveilah. Why? Because the tzad hashaveh does not claim that every prohibition in the Torah forbids benefit. It only claims that prohibitions sharing the specific conceptual profile of orlah and chametz do so. Since neveilah does not share that profile, its permissibility for benefit is irrelevant.

Furthermore, Reish Lakish argues that you cannot break a tzad hashaveh by pointing to a non-halakhic, purely physical commonality like gidulei karka (growing from the ground) unless that factor is halakhically significant to the category of the prohibition itself. The fact that plants grow from the ground is a botanical reality, not a halakhic category that governs the spiritual mechanics of issur hana'ah. Therefore, using gidulei karka as a refutation is logically invalid.

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Intertext

The Halakhic Evolution of Ma'aseh Shabbat

To fully understand the status of ma'aseh Shabbat analyzed in our sugya, we must contrast Chullin 115a with the primary sugyot in Shabbat 38a, Ketubot 34a, and Bava Kamma 71a.

The Tannaim in Shabbat 38a debate the status of food cooked on Shabbat:

• Rabbi Meir: If cooked unintentionally (beshogeg), it may be eaten by anyone on Shabbat; if cooked intentionally (bemezid), it may not be eaten by the cook on Shabbat, but may be eaten by others.
• Rabbi Yehuda: If cooked unintentionally, it may be eaten after Shabbat by anyone; if cooked intentionally, it may never be eaten by the cook, but others may eat it after Shabbat.
• Rabbi Yochanan HaSandlar: If cooked unintentionally, it may be eaten after Shabbat by others, but never by the cook; if cooked intentionally, it may never be eaten by anyone.

Our sugya in Chullin assumes the halakha follows Rabbi Yehuda:

Ma'aseh Shabbat (According to Rabbi Yehuda)
  |
  +---> Unintentional (Beshogeg): Permitted to all AFTER Shabbat.
  |
  +---> Intentional (Bemezid):
          |
          +---> For the Cook: Forbidden FOREVER.
          |
          +---> For Others: Permitted AFTER Shabbat (immediately).

This framework underpins the Gemara's question: if ma'aseh Shabbat were biblically forbidden under “kol she-ti’avti,” it would be completely prohibited to everyone forever, just like non-kosher food. The exclusion of "hi kodesh" Exodus 31:14 is what downshifts this prohibition from a biblical issur cheftza to a rabbinic gavra penalty.

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The Semantic Spectrum of Kedushah

The sugya relies on a network of verses linked by the term kadosh (holy) or its derivatives. This semantic web reveals how the Torah uses the vocabulary of holiness to delineate different types of boundaries:

Source	Hebrew Phrase	Halakhic Translation	Semantic Function
Exodus 31:14	"קֹדֶשׁ הִיא לָכֶם"	"It is holy unto you"	Limits holiness to the day of Shabbat; excludes its physical products (ma'aseh).
Deuteronomy 14:21	"כִּי עַם קָדוֹשׁ אַתָּה"	"For you are a holy people"	Introduces the prohibition of basar be-chalav.
Exodus 22:30	"וְאַנְשֵׁי־קֹדֶשׁ תִּהְיוּן לִי"	"And you shall be holy men unto Me"	Introduces the prohibition of treifah (torn carcass).
Deuteronomy 23:18	"לֹא־יִהְיֶה קָדֵשׁ"	"There shall not be a sodomite"	Used by Rabbi Yehuda HaNasi for a gezerah shavah to forbid benefit (hana'ah).

This linguistic network demonstrates that in biblical law, kedushah (holiness) is often defined through separation and boundaries.

• In the context of Shabbat, kedushah represents a boundary in time that must not bleed into physical matter.
• In the context of dietary laws (treifah, basar be-chalav), kedushah represents a boundary of consumption that preserves the physical purity of the nation.
• In the context of interpersonal relationships (kadesh), kedushah represents a boundary of sanctity that governs human intimacy.

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Psak/Practice

1. Ma'aseh Shabbat in Modern Halakha

The practical rulings for ma'aseh Shabbat are codified in Shulchan Aruch, Orach Chaim 318:1:

• Intentional Desecration (Bemeziad): If a Jew intentionally cooks or performs a biblical labor on Shabbat, that food is forbidden to him forever. However, for other people, it becomes permitted immediately after Shabbat (without needing to wait the time it takes to prepare the item, known as bichdei she-ya'asu).
• Unintentional Desecration (Beshogeg): If the labor was performed unintentionally, the food is forbidden to everyone on Shabbat itself. However, immediately after Shabbat, it becomes permitted to everyone, including the person who performed the labor.

This ruling reflects our sugya's conclusion: there is no biblical issur cheftza in the food. The restriction is entirely a rabbinic safeguard designed to protect the sanctity of Shabbat and prevent people from benefiting from transgression.

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2. Basar Be-Chalav: The Threefold Prohibition

The halakhic codification of basar be-chalav in Shulchan Aruch, Yoreh Deah 87:1 follows the School of Rabbi Yishmael’s threefold derivation:

"אסור לבשל בשר בחלב, ואסור לאכלו מן התורה, ואסור בהנאה." "It is forbidden to cook meat in milk, it is forbidden to eat it by biblical law, and it is forbidden to derive benefit from it." [^7]

This threefold structure leads to several practical rulings:

• The Cooking Prohibition: It is biblically forbidden to cook meat and milk together, even if one has no intention of eating or benefiting from the resulting mixture.
• The Benefit Prohibition: One may not sell, feed to a pet, or give as a gift to a non-Jew any mixture of meat and milk that was cooked together. Doing so violates the biblical prohibition of hana'ah.
• Non-Biblical Mixtures: If the meat and milk were mixed cold, or if they consist of poultry and milk (which is only rabbinically forbidden), the prohibition of benefit does not apply. One may derive benefit from these mixtures, though eating them remains rabbinically forbidden.

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3. Kilayei Zera'im (Diverse Seeds)

Based on the derivation on Chullin 115a, the halakha distinguishes between different agricultural mixtures:

• Kilayei Kerem (Vineyard Mixtures): Forbidden for both consumption and benefit Shulchan Aruch, Yoreh Deah 296:1. The crop must be burned.
• Kilayei Zera'im (Field Crop Mixtures): Sowing them is forbidden, but once grown, the resulting produce is completely permitted for both consumption and benefit Shulchan Aruch, Yoreh Deah 295:1. This directly reflects the juxtaposition with animal breeding (kilayei behemah) analyzed in our sugya.

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Takeaway

The physical world does not automatically absorb the spiritual status of human actions; the Torah requires explicit, localized decrees to transform a behavioral sin into a material prohibition.

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[^1]: Rashi on Chullin 115a:1:1. [^2]: Meiri on Chullin 115a:1. [^3]: Steinsaltz on Chullin 115a:1. [^4]: Ritva on Chullin 115a:1. [^5]: Chullin 115b. [^6]: Chullin 115b. [^7]: Shulchan Aruch, Yoreh Deah 87:1.