What is the guidance if major sins are committed in one of the houses and it becomes the talk of the people?

Question:
He says: Honorable Shaykh, may Allah grant you success. The questioner says: In our country, there is a house where many men enter, under the pretext that they are relatives of the people of this house, even though they are open sinners, and the house contains only women and small children. So the neighbors have started to complain about it and talk among themselves about this evil. Do they sin by speaking about it?

Answer:
This house must be reported; the Hisbah authorities must be informed, they investigate and establish the facts, and then they take the necessary measures.