‘Ali told that the Prophet, taking some silk and putting it in his right hand, and taking some gold and putting it in his left hand, said, “These are prohibited to the male members of my people.”
Ahmad, Abu Dawud and Nasa’i transmitted it.
‘Abdallah b. Ja'far said the Prophet used to wear a signet-ring on his right hand.
Ibn Majah transmitted it, and Abu Dawud and Nasa’i transmitted it on ‘Ali’s authority.