The Muslim's Position on Deviant Groups

Question:
Honorable Shaykh, may Allah be truthful with you, what is our position toward these groups, such as al-Tabligh, the Salafis, the Muslim Brotherhood, and others? Do we join one of them, or do we denounce them? What is your opinion of them?

Answer:
You are in good health, praise be to Allah. Stay with the people of truth and with the people of the Sunnah and the community. As for these groups, you are in good health without them; do not join them. If you have the ability to explain things to people and advise them to follow the school of the people of the Sunnah and the community, to be one group, and to abandon division and disagreement, then this is obligatory upon you. But if you do not have the ability and do not know how to make this explanation, then attend to yourself. Stick to the group of the people of truth and the people of the Sunnah and the community. Yes. And Allah the Exalted knows best, and may Allah send prayers and peace upon our Prophet Muhammad and upon his family and all his Companions.