Is it permissible for the husband not to pay the deferred dower to his wife who deceived him by concealing her smoking, and he wants to separate from her for this reason?

A man must prevent his wife from smoking, for it is harmful to her religion and her body. He must explain its harms and consequences to her and to the family. If she does not desist, and her persistence in this state harms the husband, then there is no objection to divorcing her after paying her deferred mahr.