Letters to the Rulers of the World

After Hudaybiyyah established peace, the Prophet ﷺ sent letters inviting world leaders to Islam. He had a silver seal ring made inscribed 'Muhammad Rasul Allah.' Letters went to Heraclius (Byzantine Emperor), Khosrow II (Sassanid Emperor), Muqawqis (ruler of Egypt), Negus of Abyssinia, rulers of Bahrain, Oman, and Yemen. Heraclius acknowledged the Prophet's claim but did not convert. Khosrow tore the letter, and the Prophet said: 'Allah will tear his kingdom.' Egypt's ruler sent gifts including Mariyah al-Qibtiyyah.