Anas b. Malik reported that one day he saw on the finger of Messenger of Allah ﷺ a silver ring, and the people also made silver rings and put them on. Then Allah's Apostle ﷺ threw his ring away, and so the people also threw away their rings. (Using translation from Muslim 2093b)
أَنَّهُ رَأَى فِي أُصْبُعِ رَسُولِ اللهِ ﷺ خَاتَمًا مِنْ وَرِقٍ يَوْمًا وَاحِدًا ثُمَّ إِنَّ النَّاسَ اضْطَرَبُوا خَوَاتِمَ مِنْ وَرِقٍ فَلَبِسُوهَا فَطَرَحَ رَسُولُ اللهِ ﷺ خَاتَمَهُ فَطَرَحَ النَّاسُ خَوَاتِيمَهُمْ