صحيح البخاري
Sahih Bukhari
كتاب فرض الخمس
The Book of The Obligations of Khumus
باب الدليل على أن الخمس لنوائب رسول الله صلى الله عليه وسلم والمساكين:
Chapter. The evidence that confirms that the Khumus (i.e., one-fifth of the war booty) is meant for the needs of Allah’s Messenger (p.b.u.h) and the poor.