What is the ruling regarding a husband's refusal to pay for his wife's medical treatment, claiming he is not obligated to do so, while she is in dire need of treatment and her health is deteriorating?

We recommend being diligent in supplication (Du'a) and lawful ruqyah.

The expense of a wife's treatment is not obligatory upon the husband according to the majority of scholars, but this should not be a justification for him not to help his wife. He must treat her well and be kind to her. If she is unable to serve herself, he must provide a servant for her. We recommend patience and advising the husband.