Hadith 696
Hazrat Aamir bin Abdullah bin Zubair narrates from his respected father, who says that when the Messenger of Allah (peace be upon him) sat in (Tashahhud) during prayer, he would place his left foot between his thigh and shin, and would place his left hand on his left knee and his right hand on his right thigh, and would gesture with his finger. Abdulwahid gestured with his index finger.