Reference for Chullin 244:16

א"ל

enumerated by the Sages in connection with the law of uncleanness VIZ. , IN THE FOLLOWING CASES THE SKIN IS ACCOUNTED AS FLESH, meaning to include the skin of the pudenda<span class="x" onmousemove="('comment',' I.e., the skin of the womb of the female animal. This had to be specially included for the Tanna was dealing with the case of a burnt-offering which is a male and not a female animal.');">¹⁰</span>

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