Reference for Chullin 111:4

הכתה חולדה על ראשה מקום שעושה אותה טרפה

RENDER BIRDS TREFAH: IF THE GULLET WAS PIERCED, OR THE WINDPIPE SEVERED; IF A WEASEL STRUCK<span class="x" onmousemove="('comment',' This must mean that the weasel struck it with its teeth and not with its fore-paw, for then it would have to be considered under the defect of 'clawing'; v. supra 52bff.');">³</span>

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