Second Book of Esdras (Author Nehemias or Esdras or both)
5:8et dixi eis nos ut scitis redemimus fratres nostros iudaeos qui venditi fuerant gentibus secundum possibilitatem nostram et vos igitur vendite fratres vestros et emimus eos et siluerunt nec invenerunt quid responderent
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.