Is it permissible for a husband to marry another woman with the knowledge and consent of his wife, but without the knowledge of their adolescent children, taking into account the wife's health and psychological condition, and the fact that the children are in a country whose laws do not permit polygyny? Or are there other solutions that the Islamic religion directs us towards to preserve family stability and raise children? And what is the ideal way for the spouses to interact in their marital life and to preserve the family so that neither party is harmed?
There is no objection to a man marrying without the knowledge of his wife and children, provided that the woman's guardian gives permission, there is offer and acceptance between the two parties, and two just witnesses are present. It is advisable to inform the wife and children to avoid future problems. Official documentation is not required if it prevents a second marriage; what is important is the fulfillment of the pillars and conditions of the legitimate contract. The man must be wise in his actions, while also treating his first wife with kindness.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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