Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) would say «السلام عليكم ورحمة الله» while turning his face to the right for salam, then would say «السلام عليكم ورحمته الله» while turning his face to the left for salam, until the whiteness of his cheeks would be visible from both sides.