Sahih al-Bukhari 1467
صحيح البخاري#1467SahihNarrated Zainab:(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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 24:69