Her husband is temperamental. How should she make du’aa’ for him?

My sister is recently married but the marriage has not been going well as expected. In the beginning, everything was just fine but recently her husband has become very temperemental and has come very close to being violent. Is there any duaas or Qur'anic verses that she may read to help restore their marriage to the way it was?

Praise be to Allaah.

There is no specific soorah or du’aa’ that may be recited in the situation described, but this wife can pray for her husband however she wishes, such as saying, “O Allaah, take away his anger, O Allaah, make him patient, O Allaah, grant him tranquillity.” She should call on her Lord by His Most Beautiful Names and beseech Him to help her; she should strive to offer her supplication at the times when du’aa’s are most likely to be accepted, such as during the last third of the night, or the last hour of Friday, or the Day of ‘Arafaah, and when prostrating during prayer, and so on. We ask Allaah to put their affairs straight. May Allaah bless our Prophet Muhammad.