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. (JA)
English reference (JA): Vol. 1, Book 5, Hadith 859 (JA)
Arabic reference (JA): Book 5, Hadith 908 (JA)