(23) باب صِفَةِ النَّبِيِّ صلى الله عليه وسلم
Narrated Hariz bin `Uthman:
That he asked `Abdullah bin Busr (i.e. the companion of the Prophet), "Did you see the Prophet (ﷺ) when he was old?" He said, "He had a few white hairs between the lower lip and the chin."
Reference: Sahih al-Bukhari 3546
In-book reference: Book 61, Hadith 55
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 56, Hadith 746