Sunan an-Nasa'i 3587
سنن النسائي#3587SahihIt was narrated that Abu Hurairah said:"No award (for victory in a competition) is permissible except over camels or horses
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 ZaiIsnaad Hasan
In-book reference: 28:27