Reference for Keritot 41:24

(ויקרא ז, כג) מכל חלב

[is forbidden]? - The Divine Law defines it as [the sinew] 'upon the hollow of the thigh', and this, too, has a 'hollow of the thigh',<span class="x" onmousemove="('comment',' Thus every animal is included, for this law is to remind us of the incident of the text. For the exclusion of birds, however, v. Hul. 92b.');">¹⁹</span>

Jastrow

Jastrow