We sacrificed along with the Messenger of Allah (ﷺ) at al-Hudaybiyyah a camel for seven and a cow for seven people.
Sunan Abi Dawud Book 16, Hadith 22
← Previous Hadith The Prophet (ﷺ) said: A cow serves for seven, and a camel serves for seven.

Sunan Abi Dawud Book 16, Hadith 21 Next Hadith → I witnessed sacrificing along with the Messenger of Allah (ﷺ) at the place of prayer. When he finished his sermon, he descended from his pulpit, and a ram was brought to him. The Messenger of Allah (ﷺ) slaughtered it with his hand, and said: In the name of Allah, Allah, is Most Great. This is from me and from those who did not sacrifice from my community.

Sunan Abi Dawud Book 16, Hadith 23