Abu Dawud
Commercial Transactions
Book Number: 016 / Hadith Number: 3407
Narated By Jabir ibn Abdullah : When Allah bestowed Khaybar on His Prophet (pbuh) as fay' (as a result of conquest without fighting), the Apostle of Allah (pbuh) allowed (them) to remain there as they were before, and apportioned it between him and them. He then sent Abdullah ibn Rawahah who assessed (the amount of dates) upon them.