Sunan an-Nasa'i 1972
سنن النسائي#1972SahihIt was narrated that Abu Hurairah said:"The Messenger of Allah announced the death of An-Najashi to his Companions in Al-Madinah, so they formed rows behind him and he offered the funeral prayer for him, saying the Takbir four times
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 Bukhari
In-book reference: 21:155