Is it permissible to boycott a Muslim? I have seen some students of knowledge boycotting some of their brothers.

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is it permissible to boycott a Muslim? I have seen some students of knowledge boycotting some of their brothers.

Answer:
It is not permissible to boycott a Muslim. The Messenger (peace and blessings be upon him) said: This is if the boycotting is for worldly matters, such as if he wronged you, or took your money, or did you harm; then you should not boycott him. But if it is absolutely necessary, limit it to three days only. This is if the boycotting is for worldly matters.
As for if it is for matters of religion, and he has sins and refuses to repent and refuses to leave them, then if boycotting him serves the interest of deterring him so that he may repent, he is boycotted so that he may repent. But if boycotting him only increases his evil, he is not boycotted; rather, maintain contact with them and advise them, so that Allah may guide them. Yes.