All perfect praise be to Allaah, The Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and messenger.
If your father’s rage reaches the point where he cannot control his mind and says irrational things like someone who is insane, then he is not held accountable for what he says. However, if his anger does not reach that level, then what he says makes him an apostate. We previously clarified this ruling in Fataawa 17875 and 86975.
It is important to note that enraging one’s father is a very serious matter especially if it leads him to do what you have mentioned. Therefore, it is important that you try not to make him angry.
Allaah Knows best.