Musannaf Ibn Abi Shayba 3:3248

'Abd al-Rahman ibn Muhammad al-Muharibi narrated to us, from Hajjaj, who said: A man from the Muslims narrated to me, from Hanash ibn al-Mu'tamir, that 'Ali, on the day of Adha, would say the takbir until he reached the place of prayer (al-'id).