Narrated Anas bin Malik: People used to give some of their datepalms to the Prophet (as a gift), till he conquered Bani Quraiza and Bani An-Nadir, whereupon he started returning their favors.
Hadith ReferenceSahih Bukhari / The Book of The Obligations of Khumus / Hadith: 3128
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة