The Only Valid Religion To Allah is Islam

Allah rebukes those who prefer a religion other than the religion that He sent His Books and Messengers with, which is the worship of Allah Alone without partners, to Whom,

وَلَهُ أَسْلَمَ مَن فِى السَّمَـوَتِ وَالاٌّرْضِ

The infallibility of the Prophets

The verse implies that a person whom Allah invests with the Book, the Wisdom and the power of making decisions, and places him on the great station of prophethood is always faithful to his mission when he communicates the Divine message to people and calls on them to be-come His faithful servants. That he starts moving people away from the worship of only one God and starts asking them to become his own worshippers or the worshippers of some other creatures is something he can never do. If so, this would mean that the one whom Allah had sent as his messenger did not, in fact, deserve this designation. Any government of this world, when appointing someone to an office of responsibility, always takes two factors into consideration: