Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
Aesop's Fables. A new translation by Laura
Oxford University Press (World's Classics): Oxford, 2002.
THE WOLF AND THE LION
A wolf had seized a young pig and was carrying it away when he ran into a lion.
The lion immediately took the pig away from him. After having to surrender the
pig, the wolf said to himself, 'I wondered myself how what I acquired by theft
could possibly have stayed with me.'
The fable shows that if someone acquires other people's property by fraud
or force, he cannot expect to keep it.
cover, with new ISBN, published in 2008; contents of book unchanged.
Perry 347: Gibbs (Oxford) 169 [English]
Perry 347: Townsend 286 [English]
Perry 347: Babrius 105 [Greek]
Perry 347: Chambry 227 [Greek]
Perry 347: Syntipas 52 [Greek]
You can find a compilation of Perry's index to the Aesopica in the gigantic appendix to his
edition of Babrius and Phaedrus for the Loeb Classical Library
(Harvard University Press: Cambridge, 1965). This book is an absolute must for anyone interested
in the Aesopic fable tradition. Invaluable.