Ibn 'Umar (RAA) narrated, 'The Messenger of Allah (ﷺ) sent a Sariyah (a small army for Jihad) to Najd, and I was among them. They got many camels as spoils and each one's share was twelve camels, and they were given an additional camel each.'. Agreed upon.
English reference: Book 11, Hadith 1328
Arabic reference: Book 11, Hadith 1302