Narrated Ka`b bin Malik
A lady slaughtered a sheep with a stone and then the Prophet (ﷺ) was asked about it and he permitted it to be eaten.
Narrated Mu`adh bin Sa`d or Sa`d bin Mu`adh
A slave girl belonging to Ka`b used to graze some sheep at Sl'a (mountain). Once one of her sheep was dying. She reached it (before it died) and slaughtered it with a stone. The Prophet (ﷺ) was asked, and he said, "Eat it."