(160) باب صِفَةِ السُّجُودِ
Narrated Ahmar ibn Jaz':
When the Messenger of Allah (ﷺ) prostrated himself, he kept his arms far away from his sides so much so that we took pity on him.
Reference: Sunan Abi Dawud 900
In-book reference: Book 2, Hadith 510
English translation: Book 3, Hadith 899