Surah Hud (هود) (Ayah 31)

The task of calling upon people to bow to God relates purely to the Hereafter. In order to ensure its success, it is absolutely necessary that there should be no disputes relating to money, land or property between the call-giver and his addressees. The call-giver himself has to shoulder the responsibility of maintaining a normal atmosphere between himself and his addressees, and for that purpose, he should unilaterally put an end to all types of material and economic disputes. That preacher who, on the one hand, makes a plea for the acceptance of Truth and, on the other, agitates and makes demands about worldly things is not a preacher in the real sense but a charlatan. He can have no value in the eyes either of his addressees or of God. The test of the addressee is that he should be able to see the greatness of Truth in an ordinary man. Conversely, the preacher should not welcome an irreligious person simply because he possesses property and status, nor should he disregard a religious person simply because he does not possess the trappings of worldly pomp and glory. If a preacher does so, it means that by word of mouth he delivers sermons about the importance of the Hereafter, while in practice he proves himself to be one who attaches greater importance to the world. Obviously, this amounts to contradicting oneself, and the word of such a person has no value in the eyes of others.