Ishaq bin Ibrahim bin Muhammad إسحاق بن إبراهيم بن محمد · Sacrifice (Kitab Al-Dahaya)

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.