Sunan Ibn Majah 1532
سنن ابن ماجه#1532SahihIt was narrated from Ibn Buraidah from his father that the Prophet (ﷺ) offered the funeral prayer for a deceased person after he had been buried
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih Lighairihi
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiSahih
In-book reference: 6:100