History of the Peloponnesian War

Thucydides

Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.

and by the afternoon of the next the wall was all but completed, when the garrison in Nisaea, alarmed by the absolute want of provisions, which they used to take in for the day from the upper town, not anticipating any speedy relief from the Peloponnesians, and supposing Megara to be hostile, capitulated to the Athenians on condition that they should give up their arms, and should each be ransomed for a stipulated sum; their Lacedaemonian commander, and any others of his countrymen in the place, being left to the discretion of the Athenians.

On these conditions they surrendered and came out, and the Athenians broke down the long walls at their point of junction with Megara, took possession of Nisaea, and went on with their other preparations.