Sahih al-Bukhari 1467
Sahih al-Bukhari · Book 24: Obligatory Charity Tax (Zakat) · The giving of Zakat to husband and to orphans
Narrated Zainab:
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا عَبْدَةُ ، عَنْ هِشَامٍ ، عَنْ أَبِيهِ ، عَنْ زَيْنَبَ ابْنَةِ أُمِّ سَلَمَةَ ، {عَنْ أُمِّ سَلَمَةَ ،} قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ أَلِيَ أَجْرٌ أَنْ أُنْفِقَ عَلَى بَنِي أَبِي سَلَمَةَ إِنَّمَا هُمْ بَنِيَّ. فَقَالَ " أَنْفِقِي عَلَيْهِمْ، فَلَكِ أَجْرُ مَا أَنْفَقْتِ عَلَيْهِمْ " .
(the daughter of Um Salama) My mother said, "O Allah's Messenger (ﷺ)! Shall I receive a reward if I spend for the sustenance of Abu Salama's offspring, and in fact they are also my sons?" The Prophet (ﷺ) replied, "Spend on them and you will get a reward for what you spend on them."