Hadith 17:649
'Abdah ibn Sulayman narrated to us, from Muhammad ibn Ishaq, from 'Amr ibn Shu'ayb, from his father, from his grandfather, who said: The Messenger of Allah (may Allah bless him and grant him peace) forbade the plucking of gray hair and said: "It is the light of the believer."
حدثنا عبدة بن سليمان عن محمد بن إسحاق عن عمرو بن شعيب عن أبيه عن جده قال نهى رسول الله صلى الله عليه وسلم عن نتف الشيب وقال هو نور المؤمن