(45) باب الأَمْرِ بِالْقِيَامِ لِلْجَنَازَةِ
It was narrated that Abu Hurairah and Abu Sa'eed said:
"We never saw the Messenger of Allah attend any funeral where he sat down until (the body) was placed (in the grave)."
Reference: Sunan an-Nasa'i 1918
In-book reference: Book 21, Hadith 101
English translation: Vol. 3, Book 21, Hadith 1919