Muslim's attitude towards Islamic groups

Q 4: There are many Islamic groups nowadays such as: Al-Ikhwan Al-Muslimun Group (the Muslim Brotherhood), Al-Tabligh (a group calling to Islam), Ansar Al-Sunnah Al-Muhammadiyyah group, Al-Jam‘iyyah Al-Shar‘iyyah, Al-Salafiyyah and those who are called Al-Takfir wal-Hijrah. All these groups and others exist in Egypt. What should the attitude of a Muslim towards these groups be? Does the Hadith narrated by Hudhayfah (may Allah be pleased with him) in which the Prophet (peace be upon him) advised him saying: “Then seclude yourself from all these sects, even if you have to bite (i.e. eat) the root of a tree until death comes to you and you are in that state.” apply to them? This Hadith was reported by Muslim in his Sahih.

A: Each of these groups involves right and wrong, truth and falsehood, and some of them are closer to truth, rightness and goodness and are more useful to people than others. (Part No. 2; Page No. 239) Therefore, you have to cooperate with all of them with regard to what they have of truth. You also have to advise them in what you know to be wrong. Moreover, you should leave that which causes you doubt and turn to that which causes you no doubt.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.