Chapter 39: The Book of Manners and Etiquette
Anas b. Malik reported that Allah' s Messenger (ﷺ) had the sublimest character among mankind. I had a brother who was called Abu 'Umair. I think he was weaned. When Allah' s Messenger (may peace he upon him) came to our house he saw him, and said: Abu 'Umair, what has the sparrow done? He (Anas) said that he had been playing with that.
Sahih Muslim 2150