If we pass by a man who is smoking, do we greet him?

The questioner : This fish, we often pass by those who smoke. What? Every time we smoke, we pass by relatives and non-relatives. Or those who are watching television.

The Shaykh : The one who is engaged in a sin is not like the one who has left it.

The questioner : Greeting is forbidden.

The Shaykh : No, it is not forbidden, but do we greet or not? He says: If there is a benefit in it, and if you greet, they say this is humiliation, then do not greet. But if there is a benefit, then greet.