Reference for Chullin 154:5

טומאת נבילות נמי תנינא

And Rabbah son of R'Hana had said that [the verse] was only necessary [to exclude these] when they were stewed in a pot!<span class="x" onmousemove="('comment',' For otherwise they certainly would not be regarded as foodstuffs.');">²</span>

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