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’.