(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." (RU)
Reference (RU): Sunan an-Nasa'i 1217 (RU)
In-book reference (RU): Book 13, Hadith 39 (RU)
English translation (RU): Vol. 2, Book 13, Hadith 1218 (RU)