The History of the Grecian War (1.27.2-1.28.2)

And they were very many, both that went and that laid down their silver. Moreover they sent to the Megareans, for fear of being stopped in their passage by the Corcyraeans, to aid them with some galleys, who accordingly furnished out eight; the citizens of Pale in Cephalonia, four. They also required galleys of the Epidaurians, who sent them five; the citizens of Hermione, one; the Troezenians, two; the Leucadians, ten; the Ambraciots, eight. Of the Thebans and Phliasians they required money; of the Eleans, both money and empty galleys. And of the Corinthians themselves there were ready thirty galleys and three thousand men of arms.

The Corcyraeans, advertised of this preparation, went to Corinth in company of the ambassadors of the Lacedaemonians and of the Sicyonians whom they took with them and required the Corinthians to recall the garrison and inhabitants which they had sent to Epidamnus, as being a city, they said, wherewith they had nothing to do;

or if they had anything to allege, they were content to have the cause judicially tried in such cities of Peloponnesus as they should both agree on; and they then should hold the colony to whom the same should be adjudged. They said also that they were content to refer their cause to the oracle at Delphi, that war they would make none;