Sunan an-Nasa'i 5196
سنن النسائي#5196Sahihأَخْبَرَنَا 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)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 48:157