Islam is a religious tradition stressing submission to God according to the revelations to the prophet Muhammad (570/571-632 CE), whom Muslims hold to be the last in a line of prophets including Abraham, Moses, and Jesus. Muhammad's revelations are recorded in the Qur'an, the sacred scripture of Islam, and Muslims also consider hadith—reports of Muhammad's sayings and actions—to be authoritative guides for moral life. Divergent views on the proper leadership of the Muslim community (ummah) led to a split between Sunni and Shi'a Islam. With around 1.5 billion followers, Islam is the second largest religion in the world, predominating across the Middle East, North Africa, and many parts of Asia and Sub-Saharan Africa. Political Islam, often known as Islamism, is currently widespread in many Muslim-majority countries; most Islamist groups identify with the ideals of democracy, while a small minority support terrorism.