Musannaf Ibn Abi Shaybah

Hazrat Ammarah bin Ruwaybah saw Bishr bin Marwan standing on the pulpit raising both his hands. Upon seeing this, he said, "May Allah destroy these two hands. I saw the Messenger of Allah (peace and blessings be upon him) that during the sermon he would only gesture like this." Saying this, he gestured with his index finger to show how.