Musannaf Ibn Abi Shayba 16:898

Abu Bakr narrated to us, he said: Ibn Mahdi narrated to us, from Sufyan, from Habib, from Tawus, who said: The Messenger of Allah (may Allah bless him and grant him peace) had a silver ring on his hand. The Prophet (may Allah bless him and grant him peace) said: "You have a look, and this has a look; it has preoccupied me today." So he took it off and gave it to a man.