Sahih al-Bukhari
Sahih al-Bukhari 2485
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا الأَوْزَاعِيُّ، حَدَّثَنَا أَبُو النَّجَاشِيِّ، قَالَ سَمِعْتُ رَافِعَ بْنَ خَدِيجٍ ـ رضى الله عنه ـ قَالَ كُنَّا نُصَلِّي مَعَ النَّبِيِّ صلى الله عليه وسلم الْعَصْرَ فَنَنْحَرُ جَزُورًا، فَتُقْسَمُ عَشْرَ قِسَمٍ، فَنَأْكُلُ لَحْمًا نَضِيجًا قَبْلَ أَنْ تَغْرُبَ الشَّمْسُ.
Muhammad ibn Yusuf narrated to us: al-Awza'i narrated to us: Abu al-Najashi narrated to us, saying: I heard Rafi ibn Khadij (may Allah be pleased with him) say: We used to pray the afternoon prayer with the Prophet (peace and blessings be upon him), then slaughter a camel. It would be divided into ten portions, and we would eat cooked meat before sunset.
Translation notes
The source says a camel was divided into ten portions; it does not specify how many people shared it.