We were with Fudalah b. 'Ubaid at Rudis in the land of Rome. One of our Companions dies, Fudalah commanded us to dig his grave; it was (dug and) levelled. He then said: I heard the Messenger of Allah ﷺ commanding to level them. Abu Dawud said: Rudis is an island, in the sea. (Using translation from Abū Dāʾūd 3219)  

سَمِعْتُ رَسُولَ اللهِ ﷺ «يَأْمُرُ بِتَسْوِيَتِهَا»  

"Shall I not send you on the same mission as the Messenger of Allah sent me? Do not leave any raised grave without leveling it, or any image in a house without erasing it." (Using translation from Nasāʾī 2031)  

قَالَ عَلِيٌّ أَلَا أَبْعَثُكَ عَلَى مَا بَعَثَنِي عَلَيْهِ رَسُولُ اللهِ ﷺ «لَا تَدَعَنَّ قَبْرًا مُشْرِفًا إِلَّا سَوَّيْتَهُ وَلَا صُورَةً فِي بَيْتٍ إِلَّا طَمَسْتَهَا»