Related for Bekhorot 65:43
נשחטה בעלת מום אם עד שלא נזרק דמה של תמימה מותרת אם משנזרק דמה של תמימה אסורה
And why does not R'Hisda interpret [the above Baraitha] altogether in accordance with Beth Shammai?<span class="x" onmousemove="('comment',' It is now assumed that just as Beth Shammai are stringent with regard to a firstling, so they are stringent with regard to other unfit sacrifices after being slaughtered.');"><sup>26</sup></span>
Tosefta Beitzah (Lieberman)
One must not flay the legs of a slaughtered animal on the holiday. And one must not flay the legs of a slaughtered animal on the working day, if it is a firstborn or a sacred animal that has become unfit acts. You can do anything for circumcision on a holiday necessary to do; Things that one is not allowed to do on the Sabbath, one may also do on the holiday: He may grate cumin and mix wine with oil. Rabban Shimon ben Gamliel says: Only he shall not first tear canvas to rags.
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