The Ruling on Deviation in Congregations and Parties

Question:
Shaykh, in this time there have appeared Islamic groups such as the Muslim Brotherhood and the group of the Christians and the Sunnah. And Shaykh Ibn Baz (may Allah have mercy on him) wrote some observations regarding the Muslim Brotherhood. But the question is: we ask them, in the end, what is the outcome?

Answer:
Welcome. I hope for you the gathering of the Salafis with us in the Hereafter, if Allah wills. The Muslim, if Allah wills, is from the people of Paradise, even if he has a deviation; the Muslim who has not exited Islam, even if he has a deviation, is from the people of Paradise. But we fear that the deviation will develop and take him out of Islam; that is what we fear. Therefore, we warn against deviation. We do not absolutely rule that the deviator is a disbeliever; no, the Muslim is a Muslim even if he has a deviation, and he is from the people of Paradise by the permission of Allah. But we fear that the deviation will develop until it takes the person out of Islam; that is what we warn against. Therefore, we say: leave the groups and parties and take the methodology of the people of the Sunnah and the community. The Prophet (peace and blessings be upon him) said: "You will split into..." They said: "Who are they, O Messenger of Allah?" He said: "They are..." today, and my Companions. No one will be saved except the one who is upon what the Messenger of Allah (peace and blessings be upon him) and his Companions were upon, and the rest are threatened with the Fire. Among them is the disbeliever, and among them is the one who is misguided, who is punished in the Fire according to his misguidance and his crime. So, whoever deviates from the school of the people of the Sunnah and the community is from the people of the Fire, meaning he is threatened with the Fire, either for his disbelief or for his misguidance. Yes.