The tradition mentioned above has also been transmitted by Ibn Umar through a different chain of narrators from the Prophet ﷺ. This version adds: 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.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
Since the status of this inscription was official, making a ring with an inscription like it was prohibited.
Due to the official status of this inscription, it was later also used by the three caliphs, until it was lost by Uthman radi Allahu anhu, so he had another ring made with the same inscription.
However, according to some Imams, the narration about the ring being lost by Uthman radi Allahu anhu is not authentic.
And Allah knows best.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 4219