Assalamu alaikum brother, I've heard that prophet swaw has said that if any Muslim doesn't talk any other Muslim brother for 3 days none of his good deeds are acceptable. Does this apply to all situations. I mean to ask let's say a Muslim's sister got raped or murdered by another Muslim or did something worse than this. Is that Muslim brother still obligated to talk to him.
Assalamualaikum waramatullahi wabarakatuhu
Forgiveness is something that our prophet tell us to always do as he said that
Abdullah ibn Amr reported: The Prophet, peace and blessings be upon him, said, “Be merciful to others and you will receive mercy. Forgive others and Allah will forgive you.” (Musnad Ahmad),
So I don't think the idea of not talk to some because he did something wrong is good, because verily by you talking to him may let him repent and asked Allah forgiveness for all his sin and we always need to pray for someone like that because this maybe the people that will distory our society