Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) did not apply dye. There were a few white hairs between his mouth and chin. There were a few white hairs on his head and a few white hairs on his temples.
Hadith Referenceصحیح ابن حبان / كتاب التاريخ / 6296
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «المختصر» (43/ 40 و 41).فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط الشيخين