The ruling on boycotting one who shortens the prayer or abandons the congregation

Question:
The questioner says: My uncle prays very little, and he does not attend the congregation except occasionally. I know that he is negligent in his prayer, and I have advised him, but unfortunately he is still negligent in performing the prayer. Is it better to boycott him, or what should I do, despite the fact that I have tried repeatedly, but unfortunately I have not found a response?

Answer:
If the intention is that he abandons the prayer entirely and does not pray at all, meaning that he intentionally leaves even some of the prayers, then he is a disbeliever who must be boycotted. He has exited the religion of Islam; the one who intentionally abandons the prayer is considered a disbeliever who has exited the religion of Islam, so he must be boycotted and avoided. However, if the questioner’s intention is that he does not pray with the congregation, even though he attends the congregational prayer, then he is abandoning an obligatory duty and is not a disbeliever. He is abandoning an obligatory duty and commits a sin in doing so. You must advise him. If he persists in his action and you see that boycotting him will have an effect on him and cause him to repent, then boycott him. If boycotting him has no effect on him and may even increase his evil, then do not boycott him, but continue advising him, perhaps Allah will guide him, as we mentioned in a previous answer. There is a difference between boycotting the disbeliever and boycotting the disobedient believer; there is a distinction between the two. Yes.