The Messenger of Allah ﷺ used to raise his hands to the level of his shoulders.
حدثنا وكيع حدثنا العمري عن نافع
أن رسول الله ﷺ كان يرفع يديه حذو منكبيه
Its isnad is sahih, and it is an abridgment of 4404 and 5672.