The insight with which the Qur’an was revealed in the Almighty’s saying: “Call to God with insight, I and whoever follows me,” which is the fulfillment of God Almighty’s saying, “He sent among the unlettered people a messenger from among them.” So he is the unlettered prophet who calls with insight along with his illiteracy, and the unlettered ones are those who call with him to God with insight, so they are his followers. In ruling, since he is the head of the group, the diligent person, and the one who has thought, he will never have insight into what he rules. As for the diligent person, he may rule today in a legal matter with a ruling, and if tomorrow something else dawns on him that will make clear to him the error of what he ruled yesterday in the matter, so he retracts it and rules today according to what appeared to him. The legislator applies his ruling on the first and the last and forbids him to deviate from what the evidence gave him in his ijtihad at that time. If he