Sunan an-Nasa'i 1036

Hannad ibn al-Sari informed us, in his narration from Abu al-Ahwas, from ʿAtaʾ ibn al-Saʾib, from Salim, who said: “We came to Abu Masʿud and said to him, ‘Tell us about the prayer of the Messenger of Allah (peace and blessings be upon him).’ He stood before us and said the takbir. When he bowed, he placed his palms on his knees, set his fingers below them, and held his elbows away from his sides until his whole body was settled. Then he said, ‘Allah hears whoever praises Him,’ and stood until his whole body was settled.”