Muhammad bin Muslim bin Tadras محمد بن مسلم بن تدرس أبو الزبير · Sacrifice (Kitab Al-Dahaya)

The Messenger of Allah (ﷺ) used to sacrifice a choice, horned ram with black round the eyes, the mouth and the feet.

The Prophet (ﷺ) said: A cow serves for seven, and a camel serves for seven.

I asked the Messenger of Allah (ﷺ) about the embryo. He replied: Eat it if you wish. Musaddad's version says: we said: Messenger of Allah, we slaughter a she-camel, a cow and a sheep, and we find an embryo in its womb. Shall we throw it away or eat it? He replied: Eat it if you wish for the slaughter of its mother serves its slaughter.