The Histories · 7.132

And among those who gave that which was demanded were the following, namely the Thessalians, Dolopians, Enianians, Perraibians, Locrians, Megnesians, Malians, Achaians of Phthiotis, and Thebans, with the rest of the Boeotians also excepting the Thespians and Plataians. Against these the Hellenes who took up war with the Barbarian made an oath; and the oath was this,--that whosoever being Hellenes had given themselves over to the Persian, not being compelled, these, if their own affairs should come to a good conclusion, they would dedicate as an offering to the god at Delphi.

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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