Sunan an-Nasa'i 5199
سنن النسائي#5199SahihIt was narrated from Anas that:The Prophet's ring was made of silver and its stone (Fass) was made of silver too
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Bukhari
In-book reference: 48:160