The Prophet ﷺ prayed the funeral prayer over a deceased person after the burial had taken place.
حدثنا محمد بن حميد حدثنا مهران بن أبي عمر عن أبي سنان عن علقمة بن مرثد
أن النبي ﷺ صلى على ميت بعد ما دفن
No references are available.
[Sahih], and Busiri graded it hasan. Muhammad bin Humayd was a daif hafiz, though Ibn Main held a favorable opinion of him (Taqrib), and his teacher has been criticized, so the chain is daif. However, the preceding hadith serves as a corroborating witness for it, and through it the hadith is confirmed as sahih.