The inscription on the seal-ring of the Messenger of Allah ﷺ read, "Muhammad, Messenger of Allah."
حدثنا محمد بن بشر حدثنا عبيد الله عن نافع
كان في خاتم رسول الله ﷺ محمد رسول الله
No references are available.
Its isnad is sahih, and it is an abridged version of 4734.