Islam is the monotheistic religion articulated by the Quran, a text considered by its adherents to be the verbatim word of their one, incomparable God (Allah), and by the Prophet of Islam Muhammad's teachings and normative example (in Arabic called the Sunnah, demonstrated in collections of Hadith). Islam literally means "submission (to God). Muslim, the word for an adherent of Islam, is the active participle of the same verb of which Islam is the infinitive