Consequently...

Consequently, the za’ir is trying to assure the mazur (the visited one) that he is at peace with him and he would not do anything that would cause harm or disturb him. Instead, he would manifest in himself things that would be geared to seek the mazur’s protective physical as well as spiritual life.

This is one of the very important stations of the za’ir , since he is in fact reasserting his covenant with Almighty Allah, by informing his beloved Imam (AS) that besides avoiding anything that would cause harm to him (AS), he would do those things that would manifest the spirit of peace as well. One of the things that does not concur with the spirit of salam is to sin. If one utters the above statement and then engages in sin, he will not have maintained the spirit of the salam that he uttered.

This is because the fourteen infallibles (AS) have the ability to witness the actions of their followers. And when they find them sinning, they get disturbed.