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.

So he was about to attack these towns; but in the meantime those who were carrying round the news of the armistice arrived at his headquarters in a trireme, Aristonymus from Athens and Athenaeus from Lacedaemon.

Whereupon his army crossed back to Torone; and the messengers formally announced the agreement to Brasidas, and all the Thracian allies of the Lacedaemonians acquiesced in what had been done.