Musnad Ahmad 467:1

'Abd al-Razzaq narrated to us, he said: Sufyan narrated to us, from Husayn ibn 'Abd al-Rahman, from 'Umarah ibn Ruwaybah al-Thaqafi, who said: Bishr ibn Marwan saw [someone] raising his hands on Friday, so he said: "I saw the Messenger of Allah, peace and blessings of Allah be upon him, on the pulpit on Friday, and he was not doing anything but like this," and he pointed with his index finger.