Praise be to the Lord of the Worlds.
A Da`i* must possess certain qualities to make his mission successful. He must have both religious knowledge and loyalty to Allah the Almighty. Thus, once he masters the teachings of Sharia he is promoting and he is loyal to Allah in word and deed, then Allah will be pleased with him and will reward him in the Hereafter. As for being accepted by people, this is not a condition, because some Prophets (Blessings and peace of Allah be upon them) were followed by their nations while others weren`t, although all are great Prophets who enjoy a high status in the sight of Allah the Exalted. And Allah the Almighty knows best.
Note by translator:
Da`i (Propounder of Da`wah)
Da`wah(Inviting people towards Islamic faith and practice).