After Othman...

After Othman, Ali became caliph but did not overturn the decision of his predecessor. He maintained Marwan's position as trustee of the Fadak. During Ali's caliphate, Fadak was regarded to be under the control of the Prophet's family, so the caliph did not make a formal declaration of personal possession in order to avoid resurrecting old feuds and jealousies and thus the causing of disunity regarding.

Under the Umayyads (661 – 750 A.D.), Mu'awiyah, their first self-impose ruler, the latter did not return Fadak to Fatima's descendants. This way was continued by later Umayyad Caliphs until the time of caliph Omer ibn Abd al-Aziz. When Omer ibn Abd al-Aziz, known as Omer II, became Caliph in 717 A.D., the income from the property of Fadak was 40,000 dinars.

Fadak was returned to Fatima's descendants by an edict given by Omer II, but this decision was renounced by later caliphs and may have been the cause of Omer being killed as well. Omer II's successor, Yazid ibn Abd al-Malik (known as Yazid II) overturned his decision, and Fadak was again made public trust. Fadak was then managed this way until the Ummayad Caliphate expired. Under the Abbasids (750 – 1258 A.D.), in 747 A.D., a huge revolt against the Umayyad Caliphate took place.

The Umayyad's were eventually defeated by the Abbasid army under the rule of “Abu Abbas” Abdullah as-Saffah (as-Saffah means in Arabic “blood-shedder” which perfectly describes him and his dynasty just as it describes the Umayyads as well. The last Umayyad ruler, Marwan II, was killed in a lesser battle a few months after the Battle of the Zab of 750 A.D., thus ending the Umayyad Caliphate. Historical accounts differ about what happened to Fadak under early Abbasid rulers.

Most likely they collected its revenues and spent it as they pleased. There is, however, consensus among Islamic scholars that Fadak was returned to the descendants of Fatima during Al-Ma'mun's reign (831-833 A.D.). Al-Ma’mun even decreed this to be recorded in his diwāns. Al-Ma’mun’s successor, al-Mutawakkil (847-861 A.D.), repossessed Fadak, confiscating it from the descendants of Fatima.

Al-Muntasir (861-862 A.D.), however, apparently maintained the decision of al-Ma'mun, thus allowing Fatima's offspring to manage Fadak. What happened thereafter is uncertain, but Fadak was probably seized by again and managed exclusively by the ruler of the time as his own personal property, and thus do some people behave.