Reference for Chullin 229:21

(שמות יב, ט) אל תאכלו ממנו נא ובשל מבושל

Should not [the mother-bird] which has been sent away from the nest be forbidden, since I have declared it to be abominable to you?<span class="x" onmousemove="('comment',' Cf. Deut. XXII, 6, 7.');">¹⁴</span>

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