Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) says: We were with the Prophet (peace and blessings be upon him) for Hajj and Umrah, and seven of us would share in one camel. A man asked him: "Can one share in a cow?" He said: "It is counted among the sacrificial camels (budn)." And Sayyiduna Jabir (may Allah be pleased with him) was present at Hudaybiyah; he said: Every seven of us shared in one camel, and that day we slaughtered seventy camels.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19236