Hadith 1933

Umm Salama said she asked God’s messenger whether she would have a reward for what she spent on Abu Salama’s sons, for they were only her sons, and he replied, “Spend on them and you will have the reward for what you spend on them.” (Bukhari and Muslim.)

وَعَنْ أُمِّ سَلَمَةَ قَالَتْ: قُلْتُ: يَا رَسُولَ اللَّهِ أَلِيَ أَجْرٌ أَنْ أَنْفِقَ عَلَى بَنِي أَبِي سَلَمَةَ؟ إِنَّمَا هُمْ بَنِيَّ فَقَالَ: «أَنَفِقِي عَلَيْهِمْ فَلَكِ أَجْرُ مَا أَنْفَقْتِ عَلَيْهِم»

Reference: 5619330
In-book reference: Book 6, Hadith 1933