Balylonian Talmud, Gittin 57a-58a
Texts on Bar Kochba: Babylonian Talmud, Gittin
Simon ben Kosiba, surnamed Simon bar Kochba ("son of the star") was a Jewish Messiah. Between 132 and 135, he was the leader of the last resistance against the Romans. After the end of the disastrous rebellion, the rabbis called him "Bar Kozeba", which means "son of the lie".
The revolt of Bar Kochba is commented upon in a treatise named Gittin (divorces), a part of the Babylonian Talmud, a large collection of rabbinical wisdom from the sixth century CE. Sections 57-58 were translated by M. Simon.
Babylonian Talmud, Gittin 57a
[57a.1] "Through the shaft of a litter, Betar was destroyed."note