Sunan an-Nasa'i 1994
سنن النسائي#1994Sahih(It was narrated that Abu Hurairah said:"The Messenger of Allah said: 'Whoever offers the funeral prayer will have one Qirat and whoever stays until )the body) is placed in the Lahd will have two Qirats, and the two Qirats are like two great mountains
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 - Agreed Upon
In-book reference: 21:177