Also, if you see a man making too frequent visits to the...

Also, if you see a man making too frequent visits to the house of a debauchee who is covering up for him, and if you are concerned about this man falling down on account of such companionship in a way which violates the Sharī`a , you have the right to attract his attention to this person being a sinner no matter what motive you have, whether it may be concern about the dissemination of an innovation in the creed or the spread of corruption.

This may be prompted by conceit and Satan's foolhardiness, for your motive may be envy of that man because of the status which he enjoys. Satan will then confuse you when you pretend to have compassion for people. Also, if you see a man buying a slave, and if you know that this slave has defects, you can mention these defects to the buyer, for if you remain silent, you will be harming the buyer.

Your stating these faults harms the slave, but the interest of the buyer ought first to be taken into consideration. And you have to mention only the defect which is relevant to the matter and not mention anything relevant to anything else that may undermine the partnership, the contract, or one's trip. Rather, you must mention in each situation what is relevant to it and not go beyond it aiming at advising rather than harming.

If a man shies away from getting married when you advise him that marriage will not be good for him, you will be doing what you ought to be doing. But if one is not dissuaded except when explicitly told about something, let it be so. The Prophet (ص) has said, "Do you hesitate to name a corrupt person before people find it out? Say that against which people ought to guard themselves" ( Ihuyā Ulūm ad-Dīn , Vol. 3, p. 144).

He (ص) has also said to Fātima daughter of Qays when she consulted him about men seeking her for marriage, "As regarding Mu'āwiyah, he is a penniless pauper. Regarding Abū Jahm, he never lets the [whipping] baton descend from his shoulder" ( Al-`Awāli , Vol. 1, p. 155).

Fifth: Slandering and making amends for both an eyewitness and a narrator: Scholars have written about narrators of traditions, dividing them into "trustworthy" and "doubted", often mentioning the reasons behind their being doubted. A sincere advice is shared in this situation, as we have stated above, when it is meant to protect the Muslims' wealth, control over what they say and protect them all from telling lies.