Sahih Muslim 4186
صحيح مسلم#4186SahihNu'man b. Bashir reported:My father conferred a gift upon me, and then brought me to Allah's Messenger (ﷺ) to make him a witness (to it). He (the Holy Prophet) said: Have you given such gift to every son of yours (as you have given to Nu'man)? He said: No. Thereupon he (the Holy Prophet) said: Don't you expect goodness from them as you expect from him? He said: Yes. of course. He (the Holy Prophet) said: I am not going to bear witness to it (as it is injustice). Ibn Aun (one of the narrators) said: I narrated this hadith to Muhammad (the other narrator) who said: Verily we narrated that lie (the Holy Prophet) had said: Observe equity amongst your children
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 24:24