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: Indeed Allah's Messenger sat - meaning for Tashah-hud - he spread his left foot, and made the top of his right (foot) face the Qiblah, and he placed his right hand on his right knee, and his left hand on his left knee, and indicated with his finger - meaning the index finge.'