Sahih Muslim Book 24, Hadith Number 5219.

Chapter : Pertaining to the discarding of rings.

Anas b. Malik reported: I saw one day on the finger of Allah’s Messenger (may peace be Upon him) a silver ring; so the people also got silver rings made and wore them Then Allah’s Apostle (may peace be upon him) discarded his ring, and the people also discarded their rings.