History of the Peloponnesian War
Thucydides
Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.
In this retreat, the greatest part of their right wing was slain, and amongst others Lycophron, one of the generals. But the rest of the army being in this manner neither much urged, nor retiring in much haste, when they could do no other, made their retreat up the hill and there sat down.
The Athenians, seeing them come no more down to battle, rifled the dead bodies of the enemy and took up their own and presently erected a trophy on the place.
That half of the Corinthians that lay at Cenchreia to watch the Athenians, that they went not against Crommyon, saw not this battle for the hill Oneius; but when they saw the dust and so knew what was in hand, they went presently to their aid. So did also the old men of Corinth from the city when they understood how the matter had succeeded.
The Athenians, when all these were coming upon them together, imagining them to have been the succours of the neighboring cities of Peloponnesus, retired speedily to their galleys, carrying with them the booty and the bodies of their dead, all save two, which, not finding, they left.