How can one deal with a husband who does not listen to religious advice and has errors in his acts of worship, despite his commitment to supererogatory prayers and night vigil, but is lenient in matters such as watching movies and rejects advice with the argument, "Each person will be held accountable in his grave alone"?

A wife's concern for her husband's religiosity is one of the greatest acts of kindness towards him. The key to dealing with a husband lies in sincere advice delivered kindly, gentle speech, soft reproof, and patience in all of that. This husband should not affect the wife's adherence to the requirements of Islamic law nor her diligence in worship.