(14) باب فَضْلِ النَّفَقَةِ وَالصَّدَقَةِ عَلَى الْأَقْرَبِينَ وَالزَّوْجِ وَالْأَوْلَادِ وَالْوَالِدَيْنِ وَلَوْ كَانُوا مُشْرِكِينَ
Umm Salama said:
I asked the Messenger of Allah (ﷺ) whether there is a reward for me if I spend on Abu Salama's sons, and I am not going to abandon them in this state (of helplessness) for they are my sons. He (the Holy Prophet) said: Yes. For you is the reward for what you spend on them.
Reference: Sahih Muslim 1001 a
In-book reference: Book 12, Hadith 57
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2190