Jabir (RAA) narrated, 'In the year of Hudaibiyah (Reconciliation), we sacrificed a camel for each seven people along with Allah's Messenger (ﷺ), and also a cow for seven. 'Related by Muslim. (RU)
English reference (RU): Book 12, Hadith 1395 (RU)
Arabic reference (RU): Book 12, Hadith 1354 (RU)