Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
Moreover, it so fell out for both that they made their entry at one and the same time, for the Athenians delayed and waited for them, being certain that the Lacedaemonians were going to hear that the messenger had come from the Persians for an agreement. They had heard that the Lacedaemonians would send their envoys with all speed. Therefore it was of set purpose that they did this in order that they might make their will known to the Lacedaemonians.