The Prophet ﷺ performed the funeral prayer over a grave.
أن النبي ﷺ صلى على قبر.
No references are available.
Muslim reported it in the Book of Funerals (955), from Ibrahim bin Muhammad bin Arara Sami, who said, Ghundar narrated to us, Shubah narrated to us, from Habib bin Shaheed, from Thabit, from Anas, and he related the hadith. This is how Muslim reported the hadith of Anas, in abridged form, and its fuller detail comes in the following hadith.