Reference for Chullin 206:32

בעא רבי אלעזר מר' אסי

<big><b>MISHNAH: </b></big>EVERY KIND OF FLESH IS FORBIDDEN TO BE COOKED IN MILK,<span class="x" onmousemove="('comment',' Including even the flesh of fowls and of wild beasts. The prohibition of 'flesh cooked in milk' relating to the cooking, or to the eating, or to the enjoyment of any benefit therefrom, is derived from the thrice-repeated Biblical prohibition: Thou shalt not seethe a kid in its mother's milk');">¹⁶</span>

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