The Messenger of Allah took a ring and put it on, then he said: "This distracted me from you all day, shifting my gaze from it to you (and back again)." Then he threw it away.
Sunan an-Nasa'i Book 48, Hadith 250
← Previous Hadith "The Prophet wore a ring of gold, then he discarded it and wore a ring of silver on which were engraved (the words) 'Muhammad Rasul Allah.' Then he said: 'No one should copy this inscription of mine.' And he wore the stone (Fass) toward his palm."

Sunan an-Nasa'i Book 48, Hadith 249 Next Hadith → The Messenger of Allah had a ring made of gold and he used to wear it with the stone (Fass) against his palm, and the people did likewise. Then he sat on the Minbar and said: "I used to wear this ring and put its stone (Fass) on the inside." Then he threw it away and said: "By Allah, I will never wear it again." And the people threw their rings away.

Sunan an-Nasa'i Book 48, Hadith 251