Is accusing one's wife of adultery—based on her immodest display (tabarruj), her mixing with men, and the matter being widespread among people—considered slandering chaste women (ramy al-muhsanat) that necessitates sin, or is it a matter of protective jealousy (ghira) over one's honor?

Slandering chaste women is one of the gravest sins. Islamic law has emphasized the sanctity of honor, ruling that a slanderer be flogged and described as corrupt, with their testimony rejected. Allah Almighty says: "And those who accuse chaste women and then do not produce four witnesses - flog them with eighty lashes and never accept their testimony thereafter. And those are the defiantly disobedient" (An-Nur: 4).

It is not permissible to accuse someone of indecency unless one has witnessed the act of fornication with their own eyes and is certain of its occurrence. These people should have advised the woman or spoken to her husband to prevent her from committing reprehensible acts, rather than accusing her of fornication without proof. This is a grave wrongdoing from which they must repent by informing those who heard their slander that they were liars. The preponderant opinion is that they are not required to inform the woman or seek her forgiveness.