Hadith 5280
Chapter 78: Description of the Ring of the Prophet [SAW] and its Inscription - كتاب الزينة من السنن
أَخْبَرَنَا الْقَاسِمُ بْنُ زَكَرِيَّا، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنِ الْحَسَنِ، - وَهُوَ ابْنُ صَالِحٍ - عَنْ عَاصِمٍ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، قَالَ كَانَ خَاتَمُ النَّبِيِّ صلى الله عليه وسلم مِنْ فِضَّةٍ وَفَصُّهُ مِنْهُ .
It was narrated that Anas said:
"The ring of the Prophet [SAW] was of silver, and its stone (Fass) was made of silver too."
Reference : Sunan an-Nasa'i 5280
In-book reference : Book 48, Hadith 241