Reference for Chullin 141:11

בהמה בכלל חיה

Unclean wild animals come under 'unclean cattle' with regard to the prohibition of 'interbreeding'.<span class="x" onmousemove="('comment',' The prohibition of breeding diverse kinds (Lev. XIX, 19) applies to all animals, whether clean or unclean; nevertheless in the Torah it is expressly stated only in connection with 'cattle'.');">⁵</span>

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