History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
especially as they would themselves furnish money sufficient for the war.The Athenians, hearing these things in their assemblies from the Segestans and their supporters, who were repeatedly alleging them, [*]( Or, voted to send, etc., according to Bekker's and Poppo's reading of πέμψαι, instead of πέμψαντες.) passed a decree on the subject; sending ambassadors, in the first place, to see about the money, whether it were already laid up, as they asserted, in the treasury and in the temples, and at the same time to ascertain what was the state of the war with the Selinuntines.
The ambassadors of the Athenians, then, were thus sent to Sicily. The same winter, the Lacedaemonians and their allies, except the Corinthians, having made an expedition into the Argive territory, ravaged a small part of the land, and took some yokes of oxen, and carried off some corn. They also settled the Argive exiles at Orneae; and having left them a few men from the rest of their forces also, and made a truce for some time, on condition of the Orneatae and the Argives not injuring each other's land, they returned home with their army.
But the Athenians having come no long time after with thirty ships and six hundred heavy—armed, the Argives, in conjunction with the Athenians, taking the field with all their force, besieged the men in Orneae one day; but at night, the army having bivouacked at some distance, they escaped out of it. The next day, the Argives, on finding this, razed Orneae and returned, and the Athenians afterwards went home with their ships.