Abu Huraira reported God’s messenger as saying, “Change grey hairs and do not copy the Jews.”
Tirmidhi transmitted it, and Nasa’i transmitted it on the authority of Ibn ‘Umar and az-Zubair.
Ibn ‘Abbas told that when a man who had dyed himself with henna passed the Prophet he said, “How fine this is! ” When another who had dyed himself with henna and katam passed by he said, “This is better than that.” Then when another who had dyed himself with yellow dye passed by he said, “This is better than all that.”
Abu Dawud transmitted it.
‘Amr b. Shu'aib, on his father’s authority, told that his grandfather reported God’s messenger as saying. “Do not pluck out grey hairs, for they are the Muslim’s light. If anyone grows a grey hair in Islam God will record on his behalf a good deed for it, will blot out a sin for it, and raise him a degree for it.”
Abu Dawud transmitted it.
Ibn ‘Umar said the Prophet used to wear tanned leather sandals and dye his beard yellow with wars (a plant of yellow colour in the Yemen, like sesame) and saffron. And Ibn ‘Umar used to do that.
Nasa’i transmitted it.
