Reference for Chullin 104:8

בשלמא צלע בלא חוליא משכחת לה אלא חוליא בלא צלע היכי משכחת לה

R'Oshaia raised the question, Why is not this dispute<span class="x" onmousemove="('comment',' Between Beth Shammai and Beth Hillel as to what deficiency in the backbone would render the animal trefah; according to the former two vertebrae must be missing, and according to the latter only one. Thus Beth Shammai clearly hold the more lenient view.');">⁴</span>

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