Sahih al-Bukhari 5369
Sahih al-Bukhari · Book 69: Supporting the Family · "And on the heir is incumbent the like of that..."
Narrated Um Salama:
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ ، حَدَّثَنَا وُهَيْبٌ ، أَخْبَرَنَا هِشَامٌ ، عَنْ أَبِيهِ ، عَنْ زَيْنَبَ ابْنَةِ أَبِي سَلَمَةَ ، عَنْ أُمِّ سَلَمَةَ ، قُلْتُ يَا رَسُولَ اللَّهِ هَلْ لِي مِنْ أَجْرٍ فِي بَنِي أَبِي سَلَمَةَ أَنْ أُنْفِقَ عَلَيْهِمْ، وَلَسْتُ بِتَارِكَتِهِمْ هَكَذَا وَهَكَذَا، إِنَّمَا هُمْ بَنِيَّ. قَالَ " نَعَمْ لَكِ أَجْرُ مَا أَنْفَقْتِ عَلَيْهِمْ " .
I said, "O Allah's Messenger (ﷺ)! Shall I get a reward (in the Hereafter) if I spend on the children of Abu Salama and do not leave them like this and like this (i.e., poor) but treat them like my children?" The Prophet said, "Yes, you will be rewarded for that which you will spend on them."