The Messenger of Allah ﷺ was standing at Arafah making supplication like this. He raised his hands to the level of his chest with his palms facing the ground.
حدثنا روح حدثنا حماد عن بشر بن حرب
كان رسول الله ﷺ واقفا بعرفة يدعو هكذا ورفع يديه حيال ثندوتيه وجعل بطون كفيه مما يلي الأرض