English translation
2938. Narrated Anas رضي الله عنه: When the Prophet ﷺ intended to write a letter to the ruler of the Byzantines, he was told that those people did not read any letter unless it was stamped with a seal. So, the Prophet ﷺ got a silver ring — as if I were just looking at its white glitter on his hand — and stamped on it the expression "Muḥammad, the Messenger of Allāh".
