Ayoub al-Sakhtiyani أيوب السختياني · The Book of the Commencement of the Prayer

"The Messenger of Allah (ﷺ) was leading us in prayer when a man came and entered the masjid, and he was out of breath. He said: 'Allahu Akbar, al-hamdulillahi hamdan kathiran tayiban mubarakan fih. (Allah is Most Great, praise be to Allah, much good and blessed praise.)' When the Messenger of Allah (ﷺ) had finished his prayer he said: 'Which of you is the one who spoke these words?' The people kept quiet. He said: 'He did not say anything…