Da`wah should be made purely and sincerely, seeking Allah's pleasure to seek the Face of Allah (and seeking His Reward) - not for show, repute, status, leadership, nor desiring worldly goals. If any of these goals adulterate it, the call is no longer for Allah; rather it is for one's own benefit or for the attainment of worldly goals. Allah informs us that His Prophets said to their people (what means)
Friends are by no means only a means for 'time-pass' or entertainment. Indeed friendship is more profound than that. Friendship and companionship are inseparable aspects of an individual's life. Experience has shown, too, that many friendships have changed the destiny of individuals and their course of life. Friends influence each other's ways, faith, and religion.
The minimal Muslim claim is that the Qur’an DOES NOT contradict established facts of science or of human experience. This means that we have no responsibility to support or justify exaggerated or obscurantist statements made by certain clerics in order to explain some Qur’anic passages – statements that obviously contradict established science or plain common sense. Now let us come to your question proper, which in simple words is as follows: ‘The Qur’an does not say anywhere that the earth revolves around the sun;