AbutTufayl said: Fatimah came to AbuBakr asking him for the inheritance of the Prophet (ﷺ). AbuBakr said: I heard the Messenger of Allah (ﷺ) say: If Allah, Most High, gives a Prophet some means of sustenance, that goes to his successor.
Sunan Abi Dawud Book 20, Hadith 46
← Previous Hadith Al-Mughirah (ibn Shu'bah) said: Umar ibn AbdulAziz gathered the family of Marwan when he was made caliph, and he said: Fadak belonged to the Messenger of Allah (ﷺ), and he made contributions from it, showing repeated kindness to the poor of the Banu Hashim from it, and supplying from it the cost of marriage for those who were unmarried. Fatimah asked him to give it to her, but he refused. That is how matters stood during the lifetime of the Messenger of Allah (ﷺ) till he passed on (i.e. died).

When AbuBakr was made ruler he administered it as the Prophet (ﷺ) had done in his lifetime till he passed on. Then when Umar ibn al-Khattab was made ruler he administered it as they had done till he passed on. Then it was given to Marwan as a fief, and it afterwards came to Umar ibn AbdulAziz.

Umar ibn AbdulAziz said: I consider I have no right to something which the Messenger of Allah (ﷺ) refused to Fatimah, and I call you to witness that I have restored it to its former condition; meaning in the time of the Messenger of Allah (ﷺ).

Abu Dawud said: When 'Umar b. 'Abd al-'Aziz was made caliph its revenue was forty thousand dinars, and when he died its revenue was four hundred dinars. Had he remained alive, it would have been less than it.

Sunan Abi Dawud Book 20, Hadith 45 Next Hadith → The Prophet (ﷺ) as saying: Do not distribute dinars among my heirs: Whatever I left after contribution to my wives and provisions for my governor is sadaqah (alms).

Abu Dawud said: 'Amil means the workers or laborers on the land (i.e. peasants).

Sunan Abi Dawud Book 20, Hadith 47