Musnad Abu Hanifah by Abu Naeem Isfahani, Publish: Maqtaba tul-Kawthar, Riyadh/Saudia

Narated By Al-Bara' ibn Azib : When the Apostle of Allah (Peace Be Upon Him) began prayer, he raised his hands up to his ears, then he did not repeat. [Musnad Abu Hanifah by Abu Naeem, Page 156]