Religious concepts and practices include the five pillars of Islam, which are obligatory acts of worship, and following Islamic law, which touches on virtually every aspect of life and society, from banking and welfare to women and the environment. The cities of Mecca, Medina and Jerusalem are home to the three holy sites in Islam.
Muslims believe that Islam is the complete and universal version of a primordial faith that was revealed many times before through prophets including Adam, Abraham, Moses, and Jesus. As for the Quran, Muslims consider it to be the unaltered and final revelation of God. It teaches that we are rewarded with paradise and with hell.
Islam teaches that God who is merciful, all-powerful and unique has guided mankind through prophets, revealed scriptures and natural signs. The primary scriptures of Islam are the Quran, viewed by Muslims as the verbatim word of God, and the teachings and normative example (called the sunnah, composed of hadith) of Muhammad.