"The Messenger of Allah put on a ring, and he had some words inscribed on it. He said: 'We have put on a ring and have had some words engraved on it; no one of you should copy this inscription.'" Then Anas said: "It is as if I can see its whiteness on his hand."
Sunan an-Nasa'i Book 48, Hadith 169
← Previous Hadith "The Messenger of Allah came out wearing a silver ring. He said: 'Whoever wants to make a ring like this, let him do so, but do not put the same inscription.'"

Sunan an-Nasa'i Book 48, Hadith 168 Next Hadith → "The Messenger of Allah said: 'Do not be so close to the Mushrikin that you can benefit from the light of their fires, and do not engrave Arabic (words) on your rings.'"

Sunan an-Nasa'i Book 48, Hadith 170