Rasûlullah was ummî, that is, he hadn’t read books; he was not schooled in writing, nor had he received lessons from anyone. Born and raised in Mecca, brought up among certain people, and despite having never travelled, he conveyed information about facts and events in the Tawrât (Hadrat Mûsâ’s heavenly book), in the Injîl, and in the books written during the Grecian and Roman centuries. In order to teach Islam, he sent letters to Muslims. In the sixth year of the Hegira, he sent letters to Byzantine, Iranian, and Abyssinian rulers and to other Arabic emperors.
The Iranian ruler (shâh) Husraw Pervîz tore his letter to pieces, and martyred the Sahâbî who had delivered him the letter. Shortly after that, he was slain by his son named Shîrûya. More than sixty foreign ambassadors came to his service. It is wâjib for everybody who has heard of Rasûlullah’s ‘sall-Allâhu ’alaihi wa sallam’ prophethood to believe him, the Qur’ân, which he brought, and Islam. He who, after having heard, dies without having îmân will go into Hell and will be eternally tormented there.