Jami' at-Tirmidhi — Hadith #28979

Harun bin Ishaq Al-Hamdani told us, Abdah told us, on the authority of Muhammad bin Ishaq, on the authority of Amr bin Shuaib, on the authority of his father, on the authority of his grandfather, The Prophet, may God bless him and grant him peace, forbade plucking gray hair and said, “It is the light of the Muslim.” He said this is a good hadith that was narrated on the authority of Abdul Rahman. Bin Al-Harith and more than one person, on the authority of Amr bin Shuaib.