Sunan an-Nasa'i, Book 48, Hadith 168 (In-Book) ⓘ
It was narrated that Anas said: "The Messenger of Allah [SAW] came out wearing a silver ring. He said: 'Whoever wants to make a ring like this, let him do so, but do not put the same inscription.'"
أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ، قَالَ حَدَّثَنَا هِشَامُ بْنُ حَسَّانَ، قَالَ حَدَّثَنِي عَبْدُ الْعَزِيزِ بْنُ صُهَيْبٍ، عَنْ أَنَسٍ، قَالَ خَرَجَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَقَدِ اتَّخَذَ حَلْقَةً مِنْ فِضَّةٍ فَقَالَ " مَنْ أَرَادَ أَنْ يَصُوغَ عَلَيْهِ فَلْيَفْعَلْ وَلاَ تَنْقُشُوا عَلَى نَقْشِهِ " .
also referenced under: Hadith 5207 (Reference) & Volume 6, Book 48, Hadith 5210 (DarusSalam)