(20) باب الْكَلاَمِ فِي الصَّلاَةِ
It was narrated from Abu Hurairah that:
A Bedouin entered the masjid and prayed two rak'ahs, then he said: "O Allah, have mercy on me and on Muhammad and do not have mercy on anyone else." The Messenger of Allah (ﷺ) said: "You have limited something vast." (ES)
Reference (ES): Sunan an-Nasa'i 1217 (ES)
In-book reference (ES): Book 13, Hadith 39 (ES)
English translation (ES): Vol. 2, Book 13, Hadith 1218 (ES)