(12) باب الأَنْفَالِ
Ibn 'Umar reported that Allah's Messenger (ﷺ) 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 (ﷺ) did not make any change in it.
Reference: Sahih Muslim 1749 b
In-book reference: Book 32, Hadith 40
USC-MSA web (English) reference(deprecated numbering scheme): Book 19, Hadith 4331