"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
← Previous Hadith "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 Next Hadith → 'Ali said: "The Messenger of Allah said to me: 'O 'Ali, ask Allah for guidance and steadfastness,' and he forbade me from placing a ring on this one and this one' - and he pointed to his forefinger and middle finger.

Sunan an-Nasa'i Book 48, Hadith 171