“The Messenger of Allah ﷺ wore a ring of silver, then he had engraved on it (the words) ‘Muhammad Rasul Allah’ (Muhammad the Messenger of Allah). And he said: ‘No one should have his ring engraved like this ring of mine.’”
اتَّخَذَ رَسُولُ اللَّهِ ﷺ خَاتَمًا مِنْ وَرِقٍ ثُمَّ نَقَشَ فِيهِ مُحَمَّدٌ رَسُولُ اللَّهِ فَقَالَ لاَ يَنْقُشْ أَحَدٌ عَلَى نَقْشِ خَاتَمِي هَذَا
Messenger of Allah ﷺ took a silver ring and had 'Muhammad, the Apostle' of Allah' engraved on it. The Prophet then said (to us), 'I have a silver ring with 'Muhammad, the Messenger of Allah engraved on it, so none of you should have the same engraving on his ring."
أَنَّ رَسُولَ اللَّهِ ﷺ اتَّخَذَ خَاتَمًا مِنْ فِضَّةٍ وَنَقَشَ فِيهِ مُحَمَّدٌ رَسُولُ اللَّهِ وَقَالَ إِنِّي اتَّخَذْتُ خَاتَمًا مِنْ وَرِقٍ وَنَقَشْتُ فِيهِ مُحَمَّدٌ رَسُولُ اللَّهِ فَلاَ يَنْقُشَنَّ أَحَدٌ عَلَى نَقْشِهِ
He engraved on it "Muhammad, the Messenger of Allah." and said: "No one must engrave anything in the manner of this signet-ring of mine. He then transmitted the rest of the tradition.
عَنِ النَّبِيِّ ﷺ فَنَقَشَ فِيهِ مُحَمَّدٌ رَسُولُ اللَّهِ وَقَالَ لاَ يَنْقُشْ أَحَدٌ عَلَى نَقْشِ خَاتَمِي هَذَا ثُمَّ سَاقَ الْحَدِيثَ