(5) باب السُّجُودِ فِي { ص }
Narrated Ibn 'Abbas:
A prostration when reciting Sad is not one of those which are divinely commanded, but I have seen Messenger of Allah (ﷺ) prostrate himself. (DE)
Reference (DE): Sunan Abi Dawud 1409 (DE)
In-book reference (DE): Book 7, Hadith 9 (DE)
English translation (DE): Book 7, Hadith 1404 (DE)