(99) باب تَسْوِيَةِ الْقُبُورِ إِذَا رُفِعَتْ
Thumamah bin Shufa narrated:
"We were with Fadalah bin 'Ubaid in the land of the Romans, and a companion of ours died. Fadalah ordered that his grave be made level, then he said: 'I heard the Messenger of Allah commanding that it be made level."'
Reference: Sunan an-Nasa'i 2030
In-book reference: Book 21, Hadith 214
English translation: Vol. 3, Book 21, Hadith 2032