Abu Ishaq al-Sabay'ai' أبو إسحاق السبيعي عمرو بن عبد الله · The Book of Funerals

"We went out with the Messenger of Allah for a funeral, and when we reached the grave the Lahd had not yet been prepared. He sat, and we sat around him, as if there were birds on our heads."

"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."