Reference for Chullin 147:36

ותנא דידן מינא דאמיה לא פריך

[We have learnt:] WHENCE WOULD WE KNOW THIS OF AN ANIMAL THAT WAS BORN TREFAH FROM THE WOMB?<span class="x" onmousemove="('comment',' Which was never fit for slaughtering, since from birth is was a trefah.');">¹⁷</span>

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