The Grand Ayatollah Makarem Shirazi answered a question about performing Salaat at a place where backbiting is going on.
Question: If whilst performing Salaat, others are engaged in backbiting, what is the duty of the person who is performing Salaat?
The Grand Ayatollah Makarem: Whenever a person is performing Salaat in a room where others are engaged in backbiting, must leave the Salaat and perform Salaat in another place because it is not allowed to be present in a gathering where a sin is being committed.
source : shafaqna
