Al-Anfaal 8:41

Know that whatever spoils you obtain, one-fifth belongs to Allah[23] and the Messenger[24], to his close relatives, the orphans, the needy and the [stranded] travelers – if you truly believe in Allah and in what We sent down to Our slave[25] on the day of Criterion[26] – the day when the two armies met [at Badr]. And Allah is Most Capable of all things.

[23] To be spent in the cause of Allah.
[24] The tribes of Banu Hāshim and Banu Abdul Muṭṭalib, who were not eligible for zakah. The remaining four-fifths are divided among the soldiers.
[25] Prophet Muhammad (ﷺ).
[26] The Battle of Badr.

And know that anything you obtain of war booty - then indeed, for Allāh is one fifth of it and for the Messenger[448] and for [his] near relatives[449] and the orphans, the needy, and the [stranded] traveler,[450] if you have believed in Allāh and in that which We sent down to Our Servant[451] on the day of criterion [i.e., decisive encounter] - the day when the two armies met [at Badr]. And Allāh, over all things, is competent.

[448] To be spent in Allāh's cause.
[449] The tribes of Banū Hāshim and Banū Muṭṭalib, who were not eligible for zakāh.
[450] The remaining four fifths are divided among the soldiers.
[451] Prophet Muḥammad (ﷺ).

41. And know that whatever of war-booty that you may gain, verily one-fifth (1/5th) of it is assigned to Allâh, and to the Messenger, and to the near relatives [of the Messenger (Muhammad صلى الله عليه وسلم)], (and also) the orphans, Al-Masâkîn (the poor) and the wayfarer, if you have believed in Allâh and in that which We sent down to Our slave (Muhammad صلى الله عليه وسلم) on the Day of criterion (between right and wrong), the Day when the two forces met (the battle of Badr); And Allâh is able to do all things.

And 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.