Xenophon's Anabasis (Cambridge, Trinity College, MS R.9.29)

...said that the march would be to the Great King in Babylon. And he orders them to say this to the soldiers, and to persuade them to follow. They, having held an assembly, reported this. The soldiers were angry with the generals and said that they had known this for a long time and were hiding it. They said they would not go unless someone gave them money, just as it was given to those who went up before with Cyrus to his father. And these were not going for a battle, but because his father was calling Cyrus. He promised to give each man five minae of silver when they arrived in Babylon, and the full pay, until he should lead the Greeks back to Ionia. Thus, the greater part of the Greek force was persuaded. But Menon, before it was clear what the other soldiers would do, whether they would follow Cyrus or not, gathered his own men and said: "Men, if you listen to me, you will be preferred by Cyrus over the other soldiers, without risking yourselves or enduring hardship. What then do I suggest you do? Now Cyrus is asking the Greeks to follow him against the King. I say that you ought to cross the Euphrates river before it is clear how the other Greeks will answer Cyrus. For if they vote to follow, you will appear to be the cause, having started the crossing, and Cyrus will be grateful to you, and will repay you, as you are the most eager—and he knows how to do this if anyone does. But if the others vote against it, we will all go back, and he will use you as the only ones who obeyed him, as the most trustworthy, both for garrisons and for commands, and whatever else you may need, I know that you will obtain it as friends of Cyrus." Hearing this, they were persuaded, and crossed before the others answered. When Cyrus realized they had crossed, he was pleased, and having sent Glus to the army, he said: "I already praise you, men."