My neighbor is neglecting the congregational prayer, and he is a man whose behavior is to be feared. How should I deal with him?

Question:
May Allah reward you. Honorable Shaykh, this questioner says: My neighbor is neglecting the congregational prayer. I was gentle with him, visited him at his home, and congratulated him on the festival, but the man keeps his distance from me, and when he sees me, he tries to avoid meeting me. I asked about him, and I do not like to find a word from him that would distress me, nor do I know how to deal with him. What is the proper conduct toward this man? Please give us a ruling on this.

Answer:
Do not harm him. I say: do not harm him. He has the right of neighborly relations. If visiting him affects him and reduces his evil, then you should visit him. But if your visit does not affect him and does not reduce his evil, then leave him alone. However, do not harm him; no harm should come from you toward his rights. Yes.