What is the solution for a wife who does not observe prayers on time, sleeps all day, neglects her husband in bed, and refuses to apologize, despite holding a degree in Islamic studies?

A husband must advise his wife and remind her of Allah, especially concerning prayer, as abandoning it is considered a major sin and can even amount to disbelief according to some scholars.

If the wife insists on abandoning prayer after all efforts have been made to guide her, scholars have issued a fatwa allowing her divorce, given that abandoning prayer is considered disbelief. He should also remind her of the husband's rights and the obligation to obey him, and the seriousness of her refusal to share the bed or her disobedience (nushuz). The husband should be gentle in inviting her [to righteousness] and employ wisdom in advising her, such as direct communication, seeking help from relatives, going for Umrah, providing her with beneficial religious materials, getting rid of unbeneficial channels, and investigating the reasons that changed her condition, all while seeking Allah's help through prayer for her guidance.