Hadith #3395 (Sahih al-Bukhari)
Book: Virtues and Merits of the Prophet (pbuh) and his Companions
Narrator(s): Wahb Abu Juhaifa As-Sawwai
Grade: Sahih

I saw the Prophet (ﷺ) and saw some white hair below his lower lip above the chin.

Source: https://parallelquran.com/hadith/sahih-al-bukhari-3395/