Musnad Ahmad 58
It was narrated from 'A'ishah that Fatimah and al-'Abbas came to Abu Bakr, seeking their inheritance from the Messenger of Allah (ﷺ). At that time they were seeking his land in Fadak and his share of Khaibar. Abu Bakr said to them:
I heard the Messenger of Allah (ﷺ) say: `We (Prophets) are not to be inherited from and whatever we leave behind is charity. Rather the family of Muhammad; may take their provision from this wealth.` By Allah, I will not leave anything that I saw the Messenger of Allah (ﷺ) do with it but I will do it too.
حَدَّثَنَا عَبْدُ الرَّزَّاقِ، حَدَّثَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، رَضِيَ اللَّهُ عَنْهَا أَنَّ فَاطِمَةَ، وَالْعَبَّاسَ أَتَيَا أَبَا بَكْرٍ يَلْتَمِسَانِ مِيرَاثَهُمَا مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَهُمَا حِينَئِذٍ يَطْلُبَانِ أَرْضَهُ مِنْ فَدَكَ وَسَهْمَهُ مِنْ خَيْبَرَ فَقَالَ لَهُمَا أَبُو بَكْرٍ رَضِيَ اللَّهُ عَنْهُ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَا نُورَثُ مَا تَرَكْنَا صَدَقَةٌ وَإِنَّمَا يَأْكُلُ آلُ مُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي هَذَا الْمَالِ وَإِنِّي وَاللَّهِ لَا أَدَعُ أَمْرًا رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَصْنَعُهُ فِيهِ إِلَّا صَنَعْتُهُ‏.‏