It is Haram (prohibited) for a

Q 5: What is the situation if one spouse curses the other, do they become unlawful for each other as regards their marriage?

A: If a spouse curses another, their marriage does not become unlawful and divorce does not occur. (Part No. 26; Page No. 63) However, cursing each other is one of the major sins; therefore; they should repent and seek forgiveness from Allah for their act and apologize to the one cursed.May Allah grant us success. May Allah's Peace and Blessings be upon our Prophet Muhammad, his family, and Companions!