أَخْبَرَنَا الْعَبَّاسُ بْنُ عَبْدِ الْعَظِيمِ الْعَنْبَرِيُّ، قَالَ حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، قَالَ حَدَّثَنَا يُونُسُ، عَنِ الزُّهْرِيِّ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم اتَّخَذَ خَاتَمًا مِنْ وَرِقٍ فَصُّهُ حَبَشِيٌّ وَنُقِشَ فِيهِ مُحَمَّدٌ رَسُولُ اللَّهِ .
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)." Translation Not Available
Book Ref: Sunan An Nisai Book 48 Hadith 5196
Web Ref: Sunan An Nisai Vol 6 Book 48 Hadith 5199