It wasnarrated that Malik bin Huwairith said that when the MessengerofAllah (ﷺ) said Allahu Akbar, he would raise his hands until theywere close to his ears; when he bowed in Ruku' he did likewise, andwhen he raised his head from Ruku' he did likewise. (RU)
English reference (RU): Vol. 1, Book 5, Hadith 859 (RU)
Arabic reference (RU): Book 5, Hadith 908 (RU)