Surah Al-Anfal, ayah 41

۞ وَٱعۡلَمُوٓاْ أَنَّمَا غَنِمۡتُم مِّن شَيۡءٖ فَأَنَّ لِلَّهِ خُمُسَهُۥ وَلِلرَّسُولِ وَلِذِي ٱلۡقُرۡبَىٰ وَٱلۡيَتَٰمَىٰ وَٱلۡمَسَٰكِينِ وَٱبۡنِ ٱلسَّبِيلِ إِن كُنتُمۡ ءَامَنتُم بِٱللَّهِ وَمَآ أَنزَلۡنَا عَلَىٰ عَبۡدِنَا يَوۡمَ ٱلۡفُرۡقَانِ يَوۡمَ ٱلۡتَقَى ٱلۡجَمۡعَانِۗ وَٱللَّهُ عَلَىٰ كُلِّ شَيۡءٖ قَدِيرٌ ٤١

Wa'lamū annamā ghanimtum min shay'in fa anna lillāhi khumusahū walir-rasūli walidhil-qurbā wal-yatāmā wal-masākīni wabnis-sabīli in kuntum āmantum billāhi wamā anzalnā 'alā 'abdinā yawmal-furqāni yawmal-taqal-jam'āni wallāhu 'alā kulli shay'in qadīr

And know that anything you obtain of war booty - then indeed, for Allāh is one fifth of it and for the Messenger⁴⁴⁸ and for [his] near relatives⁴⁴⁹ 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 Servant⁴⁵¹ 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.