Fatimah was demanding (the property of) sadaqah of the Messenger of Allah (ﷺ) at Medina and Fadak, and what remained from the fifth of Khaybar. Aisha quoted AbuBakr as saying: The Messenger of Allah (ﷺ) said: We are not inherited; whatever we leave is sadaqah. The family of Muhammad will eat from this property, that is, from the property of Allah. They will not take more then their sustenance.
Sunan Abi Dawud Book 20, Hadith 42
← Previous Hadith Fatimah daughter of Messenger of Allah (ﷺ) sent a messenger to Abu Bakr demanding from him in inheritance of the Messenger of Allah (ﷺ) from what Allah bestowed on him at Medina and Fadak, and what remained of the fifth of Khaibar. Abu Bakr said: The Messenger of Allah (ﷺ) has said: We are not inherited. Whatever we leave is sadaqah. The family of Muhammad will eat from this property. I swear by Allah I shall not change it from the former condition of its being sadaqah as it was in the time of the Messenger of Allah (ﷺ). I shall deal with it as the Messenger of Allah dealt with it. Abu Bakr, therefore, refused to give anything to Fatimah from it.

Sunan Abi Dawud Book 20, Hadith 41 Next Hadith → Abu Bakr refused that to her. Her said: I am not going to leave anything the Messenger of Allah (ﷺ) used to do but I shall carry it out. I fear if I depart a little from his practice, I shall diverge (from the right path). As regards his sadaqah (property) at Medina, 'Umar had given it to 'Ali ad 'Abbas (Allah be pleased with them), and 'Ali dominated it. As for Khaibar and Fadak, 'Umar retained them. He said: They were the sadaqah (property) of the Messenger of Allah (ﷺ), exclusively reserved for his purposes that happened, and for his emergent needs. Their management was assigned to the one who was in authority. He said: They are in that condition to the present day.

Sunan Abi Dawud Book 20, Hadith 43