ANSWER:

This doesn’t invalidate the prayer but it is a makrooh act. 

QUESTION: You said (in prayer) the followers should offer salam after the imam finishes it completely (to the right and to the left). But what if the followers turn right after the imam turns right and turn left after the imam turns left (like people do in the subcontinent). Is it permissible or do it invalidates the prayer?

Prayer |