Sunan Ibn Majah
859
Sahih+2

It was narrated that Malik bin Huwairith said that when the Messenger of Allah (ﷺ) said Allahu Akbar, he would raise his hands until they were close to his ears; when he bowed in Ruku’ he did likewise, and when he raised his head from Ruku’ he did likewise

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi