What is the way to deal with a mother who performed a spell to separate her son and his wife, after the son discovered that, knowing that honoring her is not negated by her deed?

It is recommended to fortify oneself with dhikr (remembrance of Allah) because both benefit and harm are in the hands of Allah. It is not permissible to accuse a mother of witchcraft without evidence, as the words of Satan are lies. A mother's objection to a marriage does not prove her involvement in witchcraft. One must be keen to honor their mother and strive to gain her satisfaction, even if she acts poorly.