History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
And so on their return they began to stone Thrasyllus in the bed of the Charadrus,[*](Close under the north-east wall of the city.) where before they enter the city all causes are tried that arise from an expedition. But he fled for refuge to the altar and was saved; his property however was confiscated.
After this, when Athenian reinforcements arrived, consisting of one thousand hoplites and three hundred cavalry, under the command of Laches and Nicostratus, the Argives—for they shrunk in spite of all from breaking off the truce with the Lacedaemonians—bade them go away, and would not comply with their wish to be brought before the people for negotiations, until the Mantineans and Eleans, who were still present, constrained them by their entreaties to do so.
The Athenians, then, through Alcibiades, who was present as ambassador, protested before the Argives and their allies that it was not right even to have made the truce without the consent of the rest of the allies, and now, since they themselves were present opportunely, they ought to resume the war.
Having persuaded the allies by their arguments, all of them except the Argives proceeded at once against Orchomenus in Arcadia; the Argives, though convinced, remained behind at first, then later came on too.