Commentary for Pesachim 47:15
אמר לי' רבינא לרב אשי ואימא לעבור עליו בשני לאוין לאו מי אמר אביי אכל פוטיתא לוקה ארבע
Then why is 'shall not be eaten stated? If it is irrelevant in its own case, apply its teaching to all [other] prohibitions of the Torah. And since it is irrelevant in respect of eating, apply it to benefit.
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