Sahih al-Bukhari 3135

One-fifth of Booty to the Cause of Allah (Khumus)

#3135Book 57

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُنَفِّلُ بَعْضَ مَنْ يَبْعَثُ مِنَ السَّرَايَا لأَنْفُسِهِمْ خَاصَّةً سِوَى قِسْمِ عَامَّةِ الْجَيْشِ‏.‏

Narrated Ibn `Umar:Allah's Messenger (ﷺ) used to give extra share to some of the members of the Sariya he used to send, in addition to the shares they shared with the army in general

Reference
Sahih al-Bukhari 3135
In-book
Book 57, Hadith 43
English
Muhsin Khan