Reference for Chullin 170:35

אי אמרת בשלמא דאורייתא היינו דגזרינן חיה אטו בהמה

Now, if you say that they are forbidden Biblically, we therefore forbid wild animals on account of cattle;<span class="x" onmousemove="('comment',' A statement made in anticipation of the alternative view which follows, for strictly both kinds are forbidden by the same Biblical text.');">¹¹</span>

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