Sunan an-Nasa'i 4406
سنن النسائي#4406SahihIt was narrated that Asma bint Abi Bakr said:"We slaughtered (Naharna) a horse during the time of the Messenger of Allah and ate it". (Sahih)
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: 43:46