Is the failure to inform the wife and her guardian of the existence of her children prior to marriage, and her claim of a miscarriage in order to seek divorce, considered deception and fraud, and what should the husband do about it?

A wife is considered disobedient (nashiz) if she leaves the house without her husband's permission and without a legitimate Shar'i (Islamic legal) reason, or if she refuses to return to him without an excuse. Her disobedience must be addressed as outlined by the Sharia. She is not entitled to demand a divorce merely because she has children from a previous marriage. If she does not mend her ways, the husband has the right to divorce her or refrain from divorcing her until she seeks a release from the marriage (khul'). Causing a miscarriage is forbidden unless it is not due to the wife's actions. If she intentionally causes a miscarriage, she is sinful, and if it occurs after the fetus has formed, blood money (diyah) is due. It is not obligatory for the woman or her guardian (wali) to inform the husband that she has children from a previous man. However, if the guardian denies the existence of children when questioned by the marriage officiant (ma'dhun), this is a lie and a form of deception if they know the husband's unwillingness to marry a woman who has children.