Sunan an-Nasa'i 3599

Humayd ibn Mas'adah reported to us: Yazid—meaning Ibn Zuray'—narrated to us: Ibn 'Awn narrated to us, from Nafi', from Ibn 'Umar, that 'Umar acquired land at Khaybar and came to the Prophet (peace and blessings be upon him). He said, ‘I have acquired land, and I have never acquired wealth more precious to me than it. What do you advise me to do with it?’ He replied, ‘If you wish, you may preserve its principal and give its yield in charity.’ So 'Umar endowed it on condition that it not be sold, given away, or inherited, and that it benefit the poor, relatives, the emancipation of slaves, the cause of Allah, guests, and travelers. The administrator bears no blame if he takes from it reasonably and feeds a friend, without accumulating wealth from it.