Reference for Keritot 41:18

מאי קסבר

If he holds that the koy is a doubtful creature, do we need a special text to forbid [the blood of an animal] about which there is doubt?<span class="x" onmousemove="('comment',' Surely not. The Divine law is not in doubt as to the status of the koy.');">¹⁴</span>

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