(174) باب التَّأْمِينِ وَرَاءَ الإِمَامِ
Wail b, hujr said that he prayed behind the Messenger of Allah (ﷺ),and he said Amin loudly and saluted at his right and left sides until I saw the whiteness of his cheek. (DE)
Reference (DE): Sunan Abi Dawud 933 (DE)
In-book reference (DE): Book 2, Hadith 544 (DE)
English translation (DE): Book 2, Hadith 933 (DE)