When Abu Jafar Abdullah al Mansur ad Dawaniqi...

When Abu Jafar Abdullah al Mansur ad Dawaniqi (136/754-158/775) became the calpih, he seized Fadak from the children of Fatima (as). When Muhammad al Mahdi ibn al Mansur became caliph (158/775-169/785) he returned Fadak to the children of Fatima (as).

The Musa al Hadi ibn al Mahdi (169/785-170/786) and his brother Harun ar Rashid (170/786-193/809) seized it from the descendants of Fatima (as) and it was in the possesion of Banu al Abbas untill the time that al-Mamun became the Caliph (193/831-218/833) al Mamun al Abbasi gave it back to the descendants of Fatima (as). It is narrtaed through al…