Supplication to the Holy Prophet Muhammad & critiquing the opposed view

Throughout the history, the supplication to those who are neat to the God has been common among the Muslims. But some Muslims have opposed with this old tradition in Islam. The Opposition have provided some evidences for their views. We can divide their evidences in two groups: 1. the evidences that indicates supplication is an introduction to "Sherk" and we must prevent from it. 2. some evidences that show supplication is heresy. In this essay, with descriptive – analytic method, it will be proved that supplication to the Holy prophet is neither "Sherk" nor heresy.