What is the ruling on one who says something reprehensible while in a state of extreme anger?

Question : What is it? May Allah reward you. If a person says, "I will be an apostate from the religion of Muhammad if I do such and such," while in a state of extreme anger, and then this matter occurs, such as a party for his brother...

Answer : We must know that extreme anger has no effect. That is to say, the intentional act of one who says something in a state of extreme anger carries no ruling. Even in the case of divorce, if he divorces his wife in a state of extreme anger, she is not divorced. Or if he frees his slave in a state of extreme anger, he has not freed him. Or if he endows his wealth, the point is that extreme anger equates a person to insanity, so his words are not considered.