Abbas bin Sahl [bin Sa'd] narrated:
Abu Humaid, Abu Usaid, Sahl bin Sa'd, and Muhammad bin Maslamah were once together and they were mentioning the Salat of Allah's Messenger. Abu Humaid said: 'I am the most knowledgeable among you of the Salat of Allah's Messenger: Allah's Messenger would bow and place his hands on his knees as if he was grasping them, and he would draw his forearms to hold them away from his sides.'