Sunan an-Nasa'i, Book 48, Hadith 179 (In-Book) ⓘ

It was narrated from Ibn 'Umar that: The Messenger of Allah [SAW] put on a ring of gold, and he used to wear its stone (Fass) next to his palm. Then the people started to wear rings of gold. Then the Messenger of Allah [SAW] discarded it, and the people discarded their rings. Then he acquired a ring of silver with which he used to seal letters, but he did not wear it.

أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي بِشْرٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم اتَّخَذَ خَاتَمًا مِنْ ذَهَبٍ وَكَانَ فَصُّهُ فِي بَاطِنِ كَفِّهِ فَاتَّخَذَ النَّاسُ خَوَاتِيمَ مِنْ ذَهَبٍ فَطَرَحَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم فَطَرَحَ النَّاسُ خَوَاتِيمَهُمْ وَاتَّخَذَ خَاتَمًا مِنْ فِضَّةٍ فَكَانَ يَخْتِمُ بِهِ وَلاَ يَلْبَسُهُ ‏.‏