سُنَنُ ابْنِ مَاجَهْ
Sunan Ibn Majah 866
Establishing the Prayer and the Sunnah Regarding Them
Raising the hands when bowing, and when raising the head from bowing
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا عَبْدُ الْوَهَّابِ، حَدَّثَنَا حُمَيْدٌ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ كَانَ يَرْفَعُ يَدَيْهِ إِذَا دَخَلَ فِي الصَّلاَةِ، وَإِذَا رَكَعَ .
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’.
Sunan Ibn Majah, 866Sahih (Darussalam)