Islam is a monotheistic, Abrahamic religion based on the teachings of the Quran,
a religious book considered by its adherents to be the verbatim word of God
(Allah), and the Islamic prophet Muhammad’s personally demonstrated examples of
implementing them. The Quran states that all Muslims must believe in God, his
revelations, his angels, his messengers, and in the “Day of Judgement.” Also,
there are other beliefs that differ between particular sects. The Sunni concept
of predestination is called divine decree, while the Shi’a version is called
divine justice. Unique to the Shi’a is the doctrine of Imamah, or the political
and spiritual leadership of the Imams.