Xenophon 
Anabasis 

1. Of Darius and Parysatis were born two sons, the elder Artaxerxes, and the younger Cyrus. After Darius had fallen sick, and suspected that the end of his life was approaching, he was desirous that both of his sons should attend him.2. The elder then happened to be present; Cyrus he sent for from the province of which he had made him satrap. He had also appointed him commander of all the forces that muster in the plain of Castolus.Cyrus accordingly went up, taking with him Tissaphernes as a friend, and having also with him three hundred heavy-armed Greeks, and Xenias of Parrhasia, their captain.3. But when Darius was dead, and Artaxerxes was placed upon the throne, Tissaphernes brought an accusation against Cyrus before his brother, saying that he was plotting against him. Artaxerxes was induced to give credit to it, and had Cyrus arrested, with the intention of putting him to death; but his mother, having begged his life, sent him back to his province.