Sahih al-Bukhari 5646
In-book no 5646حَدَّثَنِي مُحَمَّدُ بْنُ سَلاَمٍ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ نُمَيْرٍ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ اتَّخَذَ رَسُولُ اللَّهِ صلى الله عليه وسلم خَاتَمًا مِنْ وَرِقٍ، وَكَانَ فِي يَدِهِ، ثُمَّ كَانَ بَعْدُ فِي يَدِ أَبِي بَكْرٍ، ثُمَّ كَانَ بَعْدُ فِي يَدِ عُمَرَ، ثُمَّ كَانَ بَعْدُ فِي يَدِ عُثْمَانَ، حَتَّى وَقَعَ بَعْدُ فِي بِئْرِ أَرِيسَ، نَقْشُهُ مُحَمَّدٌ رَسُولُ اللَّهِ.
Narrated Ibn `Umar: Allah's Messenger (ﷺ) had a silver ring made for himself and it was worn by him on his hand. Afterwards it was worn by Abu Bakr, and then by `Umar, and then by `Uthman till it fell in the Aris well. (On that ring) was engraved: 'Muhammad, the Messenger of Allah."