أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَعَلِيُّ بْنُ حُجْرٍ، - وَاللَّفْظُ لَهُ - قَالاَ حَدَّثَنَا إِسْمَاعِيلُ، عَنْ عَبْدِ الْعَزِيزِ بْنِ صُهَيْبٍ، عَنْ أَنَسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " قَدِ اصْطَنَعْنَا خَاتَمًا وَنَقَشْنَا عَلَيْهِ نَقْشًا فَلاَ يَنْقُشْ عَلَيْهِ أَحَدٌ " .
It was narrated that Anas said: "The Messenger of Allah [SAW] said: 'We have had a ring made with an inscription, and no one else should copy this inscription.'" Translation Not Available
Book Ref: Sunan An Nisai Book 48 Hadith 5281
Web Ref: Sunan An Nisai Vol 6 Book 48 Hadith 5283