Combing the Hair (Kitab Al-Tarajjul)

Dawud :: Book 33 : Hadith 4190

Narrated Abdullah ibn Amr ibn al-'As:

The Apostle of Allah (peace_be_upon_him) said: Do not pluck out grey hair. If any believer grows a grey hair in Islam, he will have light on the Day of Resurrection. (This is Sufyan's version). Yahya's version says: Allah will record on his behalf a good deed for it, and will blot out a sin for it.