Passage 3.10.3
Ἀρχιδάμου δὲ τοῦ Ἀγησιλάου βασιλεύοντος κατέλαβον τὸ ἱερὸν Φωκεῖς τὸ ἐν Δελφοῖς. Θηβαίοις μὲν δὴ πολεμεῖν τοῖς Φωκεῦσιν ἀφίκετο μὲν καὶ ἰδίᾳ συμμαχικὰ ἐπὶ χρήμασιν, ἀπὸ δὲ κοινοῦ λόγου Λακεδαιμόνιοί τε καὶ Ἀθηναῖοί σφισιν ἤμυνον, οἱ μὲν ἀρχαίαν δή τινα ἐκ τῶν Φωκέων μνημονεύοντες εὐεργεσίαν, Λακεδαιμόνιοι δὲ προφάσει μὲν καὶ οὗτοι φιλίας, κατὰ ἔχθος δὲ ἐμοὶ δοκεῖν τὸ Θηβαίων. Θεόπομπος δὲ ὁ Δαμασιστράτου τόν τε Ἀρχίδαμον μετασχεῖν τῶν χρημάτων αὐτὸν καὶ ἔτι Δεινίχαν τὴν Ἀρχιδάμου γυναῖκα παρὰ τῶν δυναστευόντων ἐν Φωκεῦσιν ἔφη λαμβάνουσαν δωρεὰν ἑτοιμότερον ποιεῖν σφισιν ἐς τὴν συμμαχίαν Ἀρχίδαμον.
During the reign of Archidamus, son of Agesilaus, the Phocians seized the sanctuary at Delphi. War arose between the Thebans and the Phocians; mercenary forces joined privately for payment on the side of the Thebans, but the Spartans and Athenians openly defended the Phocians in alliance. The Athenians supported them, recalling a certain ancient benefit from the Phocians; the Spartans publicly claimed friendship as their reason, but in my opinion, their true motive was hatred of the Thebans. Theopompus, son of Damasistratus, says that Archidamus himself accepted money from the Phocian leaders, and moreover, that Deinicha, Archidamus' wife, receiving bribes from those controlling affairs in Phocis, made Archidamus even more eager for alliance with them.