Is it permissible for the husband to demand the return of the dowry and other things he paid, as well as the gold he gifted to his wife, due to the wife and her family concealing her psychological illness that prevents her from conceiving?

If there are defects in the woman that permit the annulment of the marriage, and the man was not informed of them and did not consent to them after learning of them, then he has the right to annul the marriage and reclaim what he gave her. As for defects other than these, the husband does not have the right to return the wife, unless he stipulated her soundness from them. Thus, what was mentioned about the wife regarding inability to conceive and psychological illness does not permit the husband to reclaim what he gave her in the event of divorce.