History of the Peloponnesian War

Besides, the ministers of Perdiccas, when they were at Lacedaemon, had spoken there as if they had meant to bring [as] many of the places about him [as they could] into the Lacedaemonian league. So that Brasidas favoured Arrhibaeus for the public good of their own state.

But Perdiccas said that he brought not Brasidas thither to be a judge of his controversies, but to destroy those enemies which he should show him; and that it will be an injury, seeing he pays the half of his army, for Brasidas to parley with Arrhibaeus.

Nevertheless Brasidas, whether Perdiccas would or not, and though it made a quarrel, had conference with Arrhibaeus, by whom also he was induced to withdraw his army. But from that time forward Perdiccas, instead of half, paid but a third part of his army, as conceiving himself to have been injured.