(158) باب فِي الرَّجُلِ يُدْرِكُ الإِمَامَ سَاجِدًا كَيْفَ يَصْنَعُ
Abu Hurairah reported the Messenger of Allah (ﷺ) as saying; when you come to pray while we are prostrating ourselves, you must prostrate yourselves, and do not reckon it anything (rak'ah) he has been present at the prayer. (TR)
Reference (TR): Sunan Abi Dawud 893 (TR)
In-book reference (TR): Book 2, Hadith 503 (TR)
English translation (TR): Book 2, Hadith 892 (TR)