The Qur'an, holy book for Muslims, revealed in stages to the prophet Muhammad. The Qur'an is also regarded by Muslims as the sacred word of God. Muslims believe in one, in other words "Allah" which translated from Arabic means "God". Communal worship for Muslims is in a building called a mosque. Ancient Islamic places: Tomb of Prophet of Uzair, Karbala, Mada'in Saleh and Masjid of Abdullah bin Abbas and more.