It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that I saw the Prophet (peace and blessings of Allah be upon him) saying the takbeer every time he bowed, rose, stood, and sat, and he would turn to the right and left in such a way while saying salam that the whiteness of his blessed cheeks would be visible. And I saw Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both) doing the same.