Sunan Abu Dawud
3414
Sahih+2

Narrated Jabir ibn Abdullah: When Allah bestowed Khaybar on His Prophet (ﷺ) as fay' (as a result of conquest without fighting), the Messenger of Allah (ﷺ) 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

SahihAl-Albani
Sahih LighairihiMuhammad Muhyi Al-Din Abdul Hamid