Bechoros 10a

בכורות י׳ ע״א

Bekhorot 10a

Learn Bechoros 10a step by step: Aramaic beside English, every question, answer and proof colour-coded.

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Topic

Benefit from a פטר חמור after עריפה, and whether a food's prohibition counts as intent (איסורו חישובו)

Overview

On the previous amud, רבא set out to prove that even רבי שמעון forbids benefit from a פטר חמור after its neck is broken. His source is a ברייתא where רבי שמעון says forbidden-for-benefit items cannot become טמא as food, with בשר בחלב as the one exception. The גמרא first asks why רבי שמעון explains that exception with שעת הכושר, since he holds בשר בחלב is מותר בהנאה. The answer is that he gives one reason and adds another. רבא then finishes his proof: if the פטר חמור were permitted, it should have been listed too. The גמרא pushes back that the ברייתא may be talking about a case where nobody intended to eat the donkey. That raises the question of why the רבנן treat it as food, and the suggested answer is איסורו חישובו: its prohibition counts as intent. Several משניות are brought to test this idea, and one clearly shows the רבנן require intent for forbidden meat. So רבא concludes that no one holds איסורו חישובו, and he begins a new explanation that continues on the next amud.

Opening lines

The steps (14)

1. ChallengeWhy give the 'time of fitness' reason for meat and milk?
2. ProofSource that רבי שמעון permits benefit from meat and milk
3. ResolutionHe gives one reason and then adds a second
4. Proofרבא completes his proof about the donkey firstborn
5. RejectionThe ברייתא Speaks of a Case Without Intent to Eat
6. QuestionWhy Do the Rabbis Treat It as Food?
7. ResponseIts Prohibition Counts as Its Intent
8. ChallengeChallenge from the Carcass of a Kosher Bird
9. ResolutionThe משנה Follows רבי שמעון
10. ChallengeA challenge from the first clause of a משנה about forbidden meat
11. ResolutionThe first clause follows רבי שמעון
12. ChallengeA challenge from the next clause of the same משנה
13. RejectionThis clause cannot be assigned to רבי שמעון
14. Resolutionרבא gives up the principle completely