Mishkat al-Masabih 4063
Al-Mughira b. Shu’ba told that when ‘Umar b. ‘Abd al-‘Aziz was made Caliph he gathered the family, of Marwan and said:
Fadak belonged, to God’s Messenger, and he made contributions from it, showing repeated kindness to the poor members of the B. Hashim from it and supplying: from it the cost of marriages for those of them who were unmarried. Fatima asked him to give it to her, but he refused. That is how matters stood during the lifetime of God’s Messenger till he went his way (i.e. he died). When Abu Bakr was made ruler he administered it as God's Messenger had done in his lifetime till he went his way. Then when ‘Umar b. al- Khattab was made ruler he administered it as they had done till he went his way. Then Marwan took it for himself and it afterwards came to ‘Umar b. ‘Abd al-‘Aziz, but I consider that I have no right to something which God’s Messenger refused to Fatima, and I call you to witness that I have restored it to its former condition; meaning in the time of God’s Messenger, Abu Bakr and ‘Umar. 

Abu Dawud transmitted it.
عَن المغيرةِ قَالَ: إِنَّ عمَرَ بنَ عبد العزيزِ جَمَعَ بَنِي مَرْوَانَ حِينَ اسْتُخْلِفَ فَقَالَ: إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَتْ لَهُ فَدَكُ فَكَانَ يُنْفِقُ مِنْهَا وَيَعُودُ مِنْهَا عَلَى صَغِيرِ بَنِي هَاشِمٍ وَيُزَوِّجُ مِنْهَا أَيِّمَهُمْ وَإِنَّ فَاطِمَةَ سَأَلَتْهُ أَنْ يَجْعَلَهَا لَهَا فَأَبَى فَكَانَتْ كَذَلِكَ فِي حَيَاةَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي حَيَاتِهِ حَتَّى مَضَى لسبيلِه فَلَمَّا وُلّيَ أَبُو بكرٍ علم فِيهَا بِمَا عَمِلَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي حَيَاتِهِ حَتَّى مَضَى لِسَبِيلِهِ فَلَمَّا أَنْ وُلِّيَ عُمَرُ بْنُ الْخَطَّابِ عَمِلَ فِيهَا بِمِثْلِ مَا عَمِلَا حَتَّى مَضَى لِسَبِيلِهِ ثُمَّ اقْتَطَعَهَا مَرْوَانُ ثُمَّ صَارَتْ لِعُمَرَ بْنِ عَبْدِ الْعَزِيزِ فَرَأَيْتُ أَمْرًا مَنَعَهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَاطِمَةَ لَيْسَ لِي بِحَقٍّ وَإِنِّي أُشْهِدُكُمْ أَنِّي رَدَدْتُهَا عَلَى مَا كَانَتْ. يَعْنِي عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَأَبِي بَكْرٍ وعمَرَ. رَوَاهُ أَبُو دَاوُد