We sacrificed along with the Messenger of Allah ﷺ at al-Hudaybiyyah a camel for seven and a cow for seven people. (Using translation from Abū Dāʾūd 2809)
نَحَرْنَا مَعَ رَسُولِ اللهِ ﷺ يَوْمَ الْحُدَيْبِيَةِ سَبْعِينَ بَدَنَةً الْبَدَنَةُ عَنْ سَبْعَةٍ