Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
15:20indixitque Manahem argentum super Israhel cunctis potentibus et divitibus ut daret regi Assyriorum quinquaginta siclos argenti per singulos reversusque est rex Assyriorum et non est moratus in terra
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.