(29) باب شَيْبِهِ صلى الله عليه وسلم .
Thabit reported that Anas b. Malik was asked about the dyeing (of the hair of) Allah's Apostle (ﷺ). Thereupon he said.:
(They were so few) that if I so liked I could count their number in his head, and he further said: (That is) he did not dye. Abu Bakr, however, dyed them and so did 'Umar dye them with pure henna.
Reference: Sahih Muslim 2341 d
In-book reference: Book 43, Hadith 134
USC-MSA web (English) reference(deprecated numbering scheme): Book 30, Hadith 5782