Sahih Muslim | Book 19 | Hadith Number 4331

Narrated by Ibn 'Umar
Ibn 'Umar reported that Allah's Messenger (may peace be upon him) sent an expedition to Najd and Ibn Umar was also among the troops, and their share (of the spoils) came to twelve camels and they were given one camel over and above that and Allah's Messenger (may peace be upon him) did not make any change in it.