Sayyiduna Amr bin Shu'aib narrates from his father, and he from his grandfather (Sayyiduna Abdullah bin Amr bin al-As, may Allah be pleased with him), who says: I saw the Messenger of Allah (peace and blessings be upon him) performing prayer; after finishing, sometimes he would turn to the right side and sometimes to the left side. He would also pray barefoot and sometimes with shoes on. I also saw that the Messenger of Allah (peace and blessings be upon him) would drink while standing and also while sitting.