عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ قَالَ: رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يُصَلِّي يَنْفَتِلُ عَنْ يَمِينِهِ وَعَنْ شِمَالِهِ، وَرَأَيْتُهُ يُصَلِّي حَافِيًا وَمُنْتَعِلًا، وَرَأَيْتُهُ يَشْرَبُ قَائِمًا وَقَاعِدًا
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.