War Booty
And know that whatever spoils you gain, a fifth belongs to Allah, His Messenger, the needy, the orphans, the poor, and the traveller
8:41And know that whatever ye take as spoils of war, lo! a fifth thereof is for Allah, and for the messenger and for the kinsman (who hath need) and orphans and the needy and the wayfarer, if ye believe in Allah and that which We revealed unto Our slave on the Day of Discrimination, the day when the two armies met. And Allah is Able to do all things.