I saw the Messenger of Allah ﷺ raise his hands to the level of his shoulders when he began the prayer, when he bowed, and when he raised his head from bowing. He did not raise them between the two prostrations.
حدثنا علي بن محمد وهشام بن عمار وأبو عمر الضرير قالوا حدثنا سفيان بن عيينة عن الزهري عن سالم
رأيت رسول الله ﷺ إذا افتتح الصلاة رفع يديه حتى يحاذي بهما منكبيه وإذا ركع وإذا رفع رأسه من الركوع ولا يرفع بين السجدتين
Narrated by Muslim, Prayer, chapter on the recommendation of raising the hands level with the shoulders, etc., no. 390, from the hadith of Sufyan bin Uyaynah, through this chain. Also narrated by Bukhari, Adhan, chapter on raising the hands at the first tasbir, etc., nos. 735, 736, 738, and by Muslim and others, through various routes from Zuhri, through this chain. It is one of the mutawatir hadiths, as mentioned in Nazm al-Mutanathir and elsewhere.