´It was narrated that Jabir said:` "The Messenger of Allah forbade building over graves, making them larger or plastering over them." (One of two narrators) Sulaiman bin Musa added: "Or writing on them."
Hadith ReferenceSunan an-Nasa'i / The Book of Funerals / Hadith: 2029
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم