he said: “Do not do that.” In another narration, he said: “This is the very essence of usury.” (1) He rejected it, then guided him, saying: “Sell the mixed dates—that is, the inferior ones—for dirhams, then use the dirhams to buy good-quality dates.” (2) Thus, when the caller to Islam closes a door of evil to people, he should open for them instead a door of goodness, so that they are not left bewildered.
Likewise, among the matters connected to calling to Islam is enjoining what is right and forbidding what is wrong: that one enjoins what is right and forbids what is wrong. This is among the duties of the imam. What is right is everything commanded by the Sacred Law, and what is wrong is everything forbidden by it. This is the criterion. The former is called right because the Sacred Law has recognized and affirmed it, while the latter is called wrong because the Sacred Law has condemned it. If he does not carry this out himself, he delegates it to someone competent, who then acts as his representative in this matter.
The Muslim community can never stand firm or be united except through enjoining what is right and forbidding what is wrong. Allah Most High says:
“You are the best community ever raised for humanity: you enjoin what is right, forbid what is wrong, and believe in Allah.” [Al ‘Imran: 110]
And He says:
“Let there be among you a group calling to goodness, enjoining what is right, and forbidding what is wrong. It is they who will be successful. * And do not be like those who divided and differed after clear proofs had come to them.” [Al ‘Imran: 104, 105]