It was narrated from Anas that the Messenger of Allah (ﷺ) used to raise his hands when he entered prayer, and when he bowed in Ruku’
Hadith No. 866
Sunan Ibn Majah
Gradings:
Al-Albani:
Sahih
Muhammad Fouad Abd al-Baqi:
Sahih
Zubair Ali Zai:
Sahih