(78) باب صِفَةِ خَاتَمِ النَّبِيِّ صلى الله عليه وسلم وَنَقْشِهِ
It was narrated from Anas that :
The Prophet [SAW] put on a silver ring with and Ethiopian stone (Fass), on which the inscription was: "Muhammad Rasul Allah."
Reference: Sunan an-Nasa'i 5277
In-book reference: Book 48, Hadith 238
English translation: Vol. 6, Book 48, Hadith 5279