The Messenger of Allah (ﷺ) used to give to some of the detachments he sent out (something extra) for themselves in particular apart from the division made to the whole army. The fifth is necessary in all that.
Sunan Abi Dawud Book 15, Hadith 270
← Previous Hadith ‘Abd Allaah (bin ‘Umar) said “The Apostle of Allaah(ﷺ) sent us along with a detachment. The share of each was twelve Camels. The Apostle of Allaah(ﷺ) gave each one of us a Camel as a reward.

Abu Dawud said “Burd bin Sinan narrated a similar tradition from Nafi’ as narrated by ‘Ubaid Allaah. Ayyub also narrated from Nafi’ a similar tradition, but his version goes “We were rewarded one Camel each. He did not mention the Prophet (ﷺ).

Sunan Abi Dawud Book 15, Hadith 269 Next Hadith → The Messenger of Allah (ﷺ) went out on the day of Badr along with three hundred and fifteen (men). The Messenger of Allah (ﷺ) said: O Allah, they are on foot, provide mount for them; O Allah , they are naked, clothe them; O Allah, they are hungry, provide food for them. Allah then bestowed victory on them. They returned when they were clothed. There was no man of them but he returned with one or two camels; they were clothed and ate to their fill.

Sunan Abi Dawud Book 15, Hadith 271