Compulsion or Freedom?
The various schools of thought are divided.
i. Mutazzilas believe that man is totally free and God exercises no power over his action. Those who subscribe to this view are also known as Qadariyyas.
ii. Mujabbira school of thought believe that man has no freedom and is only a tool in the hands of God.
iii. The Asharia school of thought to which most Sunnis subscribe believe that though man has no free will, he will earn the reward of his good deeds. The Sunni scholar Al-Ghazzalli sums up this doctrine as follows: "No act of any individual, even though it be done purely for his benefit, is independent of the will of Allah for its existence.
There does not occur in either the physical or the extra-terrestrial world the twinkle of an eye, the hint of a thought, or the most sudden glance except by the Decree of Allah, of His Power, Desire, and Will. This includes evil and good, benefit and harm, success and failures, sin and righteousness, obedience and disobedience, polytheism and true belief."
iv. The Shias believe that there is neither total compulsion nor total freedom. The true position is the one in-between. They maintain that Allah has fore-knowledge of human action but does not compel man to any particular course of action.
See Quraan:
source : sibtayn