Reference for Chullin 166:10

<big><strong>גמ׳</strong></big> מוקדשין מ"ט לא

For R'Zera said: He who slaughters [a bird or a wild animal] must place dust underneath [the blood] and dust above it, for it is written: He shall pour out the blood thereof, and cover it with dust [be-'afar];<span class="x" onmousemove="('comment',' V. Lev. XVII, 13.');">¹</span>

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