(23) باب صِفَةِ النَّبِيِّ صلى الله عليه وسلم
Narrated `Aisha:
That Allah's Messenger (ﷺ) came to her in a happy mood with his features glittering with joy, and said, "Have you not heard what the Qaif has said about Zaid and Us-ama? He saw their feet and remarked. These belong to each other." (i.e. They are father and son.)
Reference: Sahih al-Bukhari 3555
In-book reference: Book 61, Hadith 64
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 56, Hadith 755