´It was narrated that Abu Juhaifah said:` “I saw the Messenger of Allah (ﷺ), and this part of his hair was white” – meaning the tuft of hair between the lower lip and the chin.
Hadith ReferenceSunan Ibn Majah / Chapters on Dress / Hadith: 3628
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه