After Prophet Muhammad, the Muslims as his Ummah have been assigned the task of calling people to God. This mission is to tell people that there is no god but one God. to make man aware of God’s Creation Plan and to communicate the divine knowledge preserved in the Quran and Sunnah. This is the real responsibility of the Muslims. Their worldly success and salvation in the Hereafter both depend upon the performance of this task. If they rise to this task, they will be held deserving of having the greatest share in God’s blessings. If they do not rise to this task, there is great fear that they will be subject to God’s chastisement.