The genetic and legislative effects of the god’s successor in Islamic sayings

In the Islamic worldview, the creator of the universe is the God almighty and the universe needs his favor in its every second existence and survival. In addition, to get permanent grace from God, all the creatures and especially the human needs the perfect human to give the grace from God to all the creatures. This is impossible in the absence of the perfect human. In this paper, we intend to investigate the genetic effects of divine person, which its most important effect is the grace medium and then, the legislative effects of the existences of the god’s successor have been studied that from them, reviving the religion, elevation of divine words can be pointed out. Because the earth cannot be deprived of the god’s successor and the only way to get the god’s grace is the supervision of the god’s successor, therefore, knowing the genetic and legislative supervision is necessary, because the existence of the god’s successor is necessary for the survival and continuation of the creation and explaining the divine do’s and don’ts. In this research, the organization and research have been performed as library research according to the objectives and essence of the study.