I have a neighbor who is a Fasiq (someone flagrantly violating Islamic law) - may Allah save us from this. He commits immoral acts in his house that causes me harm due to his close proximity to me.
What should I do? Please advise me.
It is obligatory on you to advise your neighbor and, if it is clear to you that he does not accept your advice, you should stop dealing with him and inform the responsible authority for them to take the necessary disciplinary action. This is acting on the general principle in the Hadith of the Prophet (peace be upon him) that says,
“Anyone of you who sees Munkar (that which is unacceptable or disapproved of by Islamic law and Muslims of sound intellect), let them change it with their hand (by taking action); if they cannot, then with their tongue (by speaking out); and if they cannot, then with their heart (by hating it and feeling that it is wrong); and that is the weakest of Iman (faith).”
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.