Buddhist Dictionary of Pali Proper Names by G P Malalasekera
assa sutta
Assa Sutta:Once Assa,the "Jockey" (assāroha) of Rājagaha came to the Buddha to ask if it were true that a horse-trainer,if he exerted himself in the performance of his duties,would be born among the Sarañjita devas? The Buddha tells him that such a view is a perverted one and that its result is rebirth either in purgatory or as an animal.Assa expresses his consternation and declares himself thenceforth a follower of the Buddha.S.iv.310.