It wasnarrated that Abu Juhaifah said:
"I saw the Messenger of Allah(ﷺ), and this part of his hair was white" – meaning the tuft ofhairbetween the lower lip and the chin. (IT)
English reference (IT): Vol. 4, Book 32, Hadith 3628 (IT)
Arabic reference (IT): Book 32, Hadith 3759 (IT)