The Messenger of Allah ﷺ used to give the salam to his right and to his left until the whiteness of his right cheek and the whiteness of his left cheek could be seen.
حدثنا عبد الصمد: حدثنا ملازم: حدثني
كان رسول الله ﷺ يسلم عن يمينه وعن يساره، حتى يرى بياض خده الأيمن، وبياض خده الأيسر.