It wasnarrated that 'Ali bin Abu Talib said:
"When the Prophet (ﷺ)stood up to offer a prescribed prayer, he said Allahu Akbar andraisedhis hands until they were parallel to his shoulders. When hewanted tobow he did likewise; when he raised his head from bowing hedidlikewise; and when he stood up after the two prostrations he didlikewise."* (DE)
English reference (DE): Vol. 1, Book 5, Hadith 864 (DE)
Arabic reference (DE): Book 5, Hadith 913 (DE)