Sunan an-Nasa'i 2028
سنن النسائي#2028SahihJabir said:"The Messenger of Allah forbade plastering over graves, building over them or sitting on them
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 21:211