Azraq bin Qays (may Allah have mercy on him) relates that Sayyiduna Abu Rimthah (may Allah be pleased with him) led us in prayer and said: I saw the Messenger of Allah (peace and blessings be upon him) pray, then give the salam to his right and to his left, until we saw the whiteness of his (peace and blessings be upon him) cheeks.
Hadith Referenceالمعجم الكبير للطبراني / باب الياء / 18931