Passage 4.26.2
ἐπεὶ δὲ τὸ πταῖσμα ἐγένετο τὸ Ἀθηναίων ἐν Αἰγὸς ποταμοῖς, οὕτω καὶ ἐκ Ναυπάκτου τοὺς Μεσσηνίους ἐκβάλλουσιν οἱ Λακεδαιμόνιοι ναυσὶν ἐπικρατοῦντες, οἳ ἐς Σικελίαν τε παρὰ τοὺς συγγενεῖς καὶ ἐς Ῥήγιον ἐστάλησαν, τὸ πλεῖστον δὲ αὐτῶν ἔς τε Λιβύην ἀφίκετο καὶ Λιβύης ἐς Εὐεσπερίτας· οἱ γὰρ Εὐεσπερῖται πολέμῳ κακωθέντες ὑπὸ βαρβάρων προσοίκων πάντα τινὰ Ἕλληνα ἐπεκαλοῦντο σύνοικον. ἐς τούτους τῶν Μεσσηνίων τὸ πολὺ ἀπεχώρησεν· ἡγεμὼν δέ σφισιν ἦν Κόμων, ὃς καὶ περὶ τὴν Σφακτηρίαν ἐστρατήγησεν αὐτοῖς.
When the disaster at Aegospotami befell the Athenians, the Spartans, having now supremacy at sea, expelled also the Messenians from Naupactus. These Messenians were sent partly to their kin in Sicily and partly to Rhegium, but most of them reached Libya, particularly Euesperitae in Libya. For the people of Euesperitae, severely harassed in war by the neighboring barbarians, called upon every Greek to come and settle together with them. To these people, therefore, most of the Messenians withdrew. Their leader was Comon, who had previously commanded them at Sphacteria.