Sunan al-Nasa'i The Book of Adornment Abu Sa'id al-Khudri al-Laith bin Sa'd الليث بن سعد Ali bin Muhammad b. 'Ali b. Abi al-Mada علي بن محمد بن علي بن أبي المضاء Amr bin al-Harith bin Ya'qub عمرو بن الحارث Bakr bin Swad'h bin Thmamh بكر بن سوادة بن ثمامة Da'ud bin Mnswr al-Nsa'iy داود بن منصور النسائي “The Messenger of Allah had a ring of silver which he wore on his right hand. It had an Ethiopian stone (Fass), and he used to wear the stone (Fass) next to his palm.” https://parallelquran.com/hadith/sunan-al-nasai-5206/