Reference for Pesachim 46:5

ואידך בבהמה קאמרינן בבהמה מיהת לא אישתרי

will you say [the same] of the sinew, which was not freed from its general [prohibition] in the case of a beast?<span class="x" onmousemove="('comment',' The prohibition of a thigh sinew applies also to a beast.');">⁴</span> And the other? - We are speaking of cattle<span class="x" onmousemove="('comment',' The text under discussion speaks of the fat of an ox or lamb, v. Lev. VII, 23.');">⁵</span> [behemah]; [and] in the case of cattle at all events it [sc. heleb] wa not permitted.

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