Passage 9.15.4
ὡς δὲ βοιωταρχεῖν αὖθις ᾕρητο καὶ στρατῷ Βοιωτῶν ἀφίκετο αὖθις ἐς Πελοπόννησον, ἐκράτησε μὲν περὶ Λέχαιον Λακεδαιμονίους μάχῃ, σὺν δέ σφισιν Ἀχαιῶν Πελληνέας καὶ Ἀθηναίων οὓς Χαβρίας ἦγεν ἐξ Ἀθηνῶν. Θηβαίοις δὲ ἦν καθεστηκὸς τοὺς μὲν ἄλλους, ὁπόσους αἰχμαλώτους ἕλοιεν, ἀφιέναι χρημάτων, τοὺς δὲ ἐκ Βοιωτῶν φεύγοντας ζημιοῦν θανάτῳ· πόλισμα οὖν ἑλὼν Σικυωνίων Φοιβίαν, ἔνθα ἦσαν τὸ πολὺ οἱ Βοιώτιοι φυγάδες συνηγμένοι, ἀφίησι τοὺς ἐγκαταληφθέντας, ἄλλην σφίσιν ἣν ἔτυχε πατρίδα ἐπονομάζων ἑκάστῳ.
When he was chosen again as Boeotarch and led an army of the Boeotians once more into the Peloponnese, he defeated the Lacedaemonians in battle near Lechaeum, and along with them the Pelleneans from Achaea and those Athenians whom Chabrias had led from Athens. The Thebans had a policy of releasing all prisoners they captured for ransom, except for Boeotian exiles, whom they punished with death. Having thus captured the Sicyonian town of Phoebia, where most of the exiled Boeotians had gathered, he freed those he found there, assigning to each a new citizenship in whatever place he happened to designate as their new homeland.