Prophet Muhammad (PBUH) was sent as a messenger to deliver the message of Islam to all of humanity, including the most powerful rulers of his time. After firmly establishing Islam in Arabia, he extended his mission beyond the region by sending letters to various kings and emperors, inviting them to embrace Islam.
He reached out to influential leaders beyond the Arabian Peninsula, conveying the word of Allah (SWT). Among those who received his letters were Emperor Ashama ibn Abjar of Ethiopia, Heraclius, the Byzantine Emperor, Chosroes, the Persian King, Munzir ibn Sawa, the ruler of Bahrain, Harith, the prince of Yemen, and Harith Gassani, the governor of Sham.
One of the most significant of these letters was sent to Heraclius, the Roman Emperor. This historic letter is preserved in the King Hussein Mosque in Jordan.
While Negus of Abyssinia accepted Islam, most other rulers—including Heraclius—recognized the truth of the message but hesitated to embrace it due to fears of losing their power and influence. Heraclius himself admitted that he would have accepted Islam had he not feared the reaction of his people.
