Malik b. al-Huwairith said that when God’s Messenger said the takbir he raised his hands and placed them opposite his ears, and when he raised his head after bowing and said, “God listens to him who praises Him,” he did the same. A version has, “and placed them opposite the tops of his ears.”
Nafi‘ said that when Ibn ‘Umar began prayer he said the takbir and raised his hands; when he bowed he raised his hands; when he said, “God listens to him who praises Him” he raised his hands; and when he got up at the end of two rak'as he raised his hands. Ibn ‘Umar traced that back to the Prophet.
He said that he saw the Prophet praying, and when he had prayed an odd number of rak'as he did not stand up till after he had adopted a sitting position.
Ibn ‘Umar said that God’s Messenger used to raise his hands opposite his shoulders when he began prayer and when he said the takbir before bowing; and when he raised his head after bowing he raised them in the same way and said, “God listens to him who praises Him. To Thee, our Lord, be the praise!” But he did not do that when he prostrated himself.