Prophet Muhammad (PBUH) sent letters to kings beyond Arabia inviting them to Islam. To authenticate these letters, what kind of seal was made?

Prophet Muhammad (PBUH) sent letters to different kings and rulers outside Arabia inviting them to accept Islam. These letters were sent to important leaders such as the Emperor of Rome (Heraclius), the King of Persia (Khosrow II), the King of Abyssinia (Negus), and the ruler of Egypt (Muqawqis). To make sure the letters were recognized as official, Prophet Muhammad (PBUH) had a special seal made.

The seal used by Prophet Muhammad (PBUH) was made of silver. It was not just a decoration but an official stamp to authenticate his letters. The silver seal had the beautiful inscription: Muhammad Rasul Allah (Muhammad, the Messenger of Allah) engraved on it. The words were arranged in three lines:

1. Allah (الله)

2. Rasul (رسول)

3. Muhammad (محمد)

This order was placed from top to bottom, with Allah at the top, followed by Rasul, and then Muhammad at the bottom. This silver ring was worn by the Prophet on his little finger and was later used by his successors after his passing.

• Type of seal: Silver


• Purpose: To authenticate official letters inviting rulers to Islam


• Engraving: Muhammad Rasul Allah (محمد رسول الله)


• Used for: Letters sent to Heraclius (Rome), Khosrow (Persia), Muqawqis (Egypt), and others


• Symbol of: Prophethood, authority, and official correspondence

The silver seal of Prophet Muhammad (PBUH) is a significant symbol in Islamic history. It showed his seriousness in spreading the message of Islam beyond Arabia. The letters and the seal played a major role in dawah (invitation to Islam) and political communication. This historical detail also reminds Muslims today of how Islam spread peacefully through wisdom, writing, and sincere invitation. The silver seal became a mark of authenticity and leadership that was respected even by non-Muslim rulers.