Menachot 22

Sugya Map

• Issue: The principles governing nullification (bitul) of sacrificial items when mixed, specifically regarding blood of offerings. Does min b'mino (same type) or oleh l'mizbeach (designated for the altar) prevent bitul?
• Nafka Mina: Whether sacred blood mixed with non-sacred blood (or different sacred bloods) is fit for the altar; the machloket between the Rabbis and Rabbi Yehuda in Zevachim 77b.
• Primary Sources: Menachot 22a; Zevachim 77b; Vayikra 16:18 ("וְלָקַח מִדַּם הַפָּר וּמִדַּם הַשָּׂעִיר").

Text Snapshot

The Gemara explores Rabbi Yochanan's explanation of the machloket in Zevachim 77b:

"רַבִּי יוֹחָנָן אָמַר: וְכֵן שְׁנֵיהֶם מִקְרָא אֶחָד דָּרְשׁוּ... רַבָּנַן סָבְרִי: מֵהָכָא לָמְדִינַן מִינֵי דְמִינֵי דְּסָלְקִי לְמִזְבֵּחַ — לָא בָּטְלִי חֲדִידֵי. וְרַבִּי יְהוּדָה סָבַר: מֵהָכָא לָמְדִינַן מִין בְּמִינוֹ — לָא בָּטֵיל." (Menachot 22a) "Rabbi Yochanan says: And both derived their opinions from one verse... The Rabbis hold: From here we learn that items of different types that ascend to the altar do not nullify one another. And Rabbi Yehuda holds: From here we learn that a substance in contact with the same type of substance is not nullified."

The Gemara then challenges: "וְדִלְמָא עַד דְּאִיתַנְהוּ לְתַרְוַיְיהוּ? קַשְׁיָא." (Menachot 22a)

"But perhaps [it is not nullified] until both criteria are met? [This is] difficult." Dikduk/Leshon: The term "קשיא" signifies a genuine difficulty, often left unresolved, indicating a conceptual tension.

Readings

Rashi (on Zevachim 77b s.v. "דם בדם בהמה")

Rashi explains the basic machloket in Zevachim 77b: The Rabbis hold that non-sacred blood nullifies sacred blood if it changes its appearance, treating it like water. Rabbi Yehuda, however, posits that "דם אינו מבטל דם" (blood does not nullify blood), even if it's non-sacred, due to their shared essence. This sets the stage for Rabbi Yochanan's derasha.

Tosafot (on Menachot 22a s.v. "וקשיא")

Tosafot grapples with the Gemara's "קשיא." They suggest that the kushya indicates that the verse "ומדם הפר ומדם השעיר" (Vayikra 16:18) which mixes the bull's and goat's blood, might imply both reasons are necessary for non-nullification: being min b'mino AND oleh l'mizbeach. Thus, neither Rabbi Yochanan's derasha for the Rabbis nor for Rabbi Yehuda is conclusive on its own.

Friction

The strongest kushya is the Gemara's explicit "קשיא" itself: If the source for bitul rules (Vayikra 16:18) inherently involves both "מין במינו" and "סלקי למזבח" (blood of same type, both ascend), how can Rabbi Yochanan attribute the pasuk to teach only one of these conditions to each Tanna? Perhaps the pasuk only teaches non-nullification when both conditions are met. The Gemara offers no terutz, leaving it an unresolved difficulty.

Intertext

The principle of bitul min b'mino is a cornerstone of halacha, appearing extensively in issur v'heter (e.g., Chullin 98a regarding basar b'chalav). The concept of oleh l'mizbeach preventing bitul is unique to kodshim, highlighting the distinct stringencies and logical framework of sacred items.

Psak/Practice

The halacha largely follows Rabbi Yehuda in bitul min b'mino for issurei hana'ah (see Shulchan Aruch, Yoreh De'ah 100:1). However, regarding kodshim, the Rishonim debate whether the kushya is truly unresolved or if one Tanna's view prevails. Many poskim lean towards the understanding that items oleh l'mizbeach do not nullify each other even if they are not min b'mino (e.g., Rambam, Hilchot Pesulei HaMukdashim 17:15).

Takeaway

The Gemara's "קשיא" on Rabbi Yochanan's elegant derasha underscores the rigorous, even skeptical, analytical method of the Amoraim, refusing to settle for an explanation if a more comprehensive reading of the pasuk is plausible. It highlights the complex interplay between min b'mino and kedusha in bitul.