On Only Turning Your Head When You Give Salaam in the Prayer, Not Your Shoulders and Body.
The Imaam said to a person who had been praying next to him, “When you want to give
salaam [to end the prayer] don’t trouble yourself, moving your shoulders right and left, stay as you are [i.e., keep your shoulders as they are and just turn your head not your body], you will trouble yourself like that—and I don’t want you to be troubled, doing so is burdening yourself unnecessarily, may Allaah bless you.”
Al-Hudaa wan-Noor , no. 397.
Ref; shaikhalbaani.