(17) باب مَنَاقِبُ زَيْدِ بْنِ حَارِثَةَ مَوْلَى النَّبِيِّ صلى الله عليه وسلم
Narrated `Urwa:
Aisha said, "A Qaif (i.e. one skilled in recognizing the lineage of a person through Physiognomy and through examining the body parts of an infant) came to me while the Prophet (ﷺ) was present, and Usama bin Zaid and Zaid bin Haritha were Lying asleep. The Qa'if said. These feet (of Usama and his father) are of persons belonging to the same lineage.' " The Prophet (ﷺ) was pleased with that saying which won his admiration, and he told `Aisha of it.
Reference: Sahih al-Bukhari 3731
In-book reference: Book 62, Hadith 79
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 57, Hadith 78