1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
18:4and David captureth from him a thousand chariots, and seven thousand horsemen, and twenty thousand footmen, and David destroyeth utterly all the chariots, and leaveth of them a hundred chariots only.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.