´It was narrated from Anas that :` The Prophet [SAW] wore a ring of silver with an Ethiopian stone (Fass), on which was inscribed (the phrase): "Muhammad Rasul Allah (Muhammad the Messenger of Allah)."
Hadith ReferenceSunan an-Nasa'i / The Book of Adornment / Hadith: 5199
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه