Sahl bin Sa'd (RA) concerning the story of the two (husband and wife) who invoked curses regarding one another:
When they finished invoking curses regarding one another the man said, "I shall have lied against her, O Allah's Messenger, if I keep her (as a wife)." He, then, pronounced her divorce three times, even before Allah's Messenger (ﷺ) commanded him to do so.
[Agreed upon].