Passage 6.7.6
τὰ δὲ ἐς τοῦ Δωριέως τὴν τελευτήν ἐστιν ἐν τῇ συγγραφῇ τῇ Ἀτθίδι Ἀνδροτίωνι εἰρημένα, εἶναι μὲν τηνικαῦτα ἐν Καύνῳ τὸ βασιλέως ναυτικὸν καὶ Κόνωνα ἐπʼ αὐτῷ στρατηγόν, Ῥοδίων δὲ τὸν δῆμον πεισθέντα ὑπὸ τοῦ Κόνωνος ἀπὸ Λακεδαιμονίων μεταβαλέσθαι σφᾶς ἐς τὴν βασιλέως καὶ Ἀθηναίων συμμαχίαν, Δωριέα δὲ ἀποδημεῖν μὲν τότε ἐκ Ῥόδου περὶ τὰ ἐντὸς Πελοποννήσου χωρία, συλληφθέντα δὲ ὑπὸ ἀνδρῶν Λακεδαιμονίων αὐτὸν καὶ ἀναχθέντα ἐς Σπάρτην ἀδικεῖν τε ὑπὸ Λακεδαιμονίων καταγνωσθῆναι καὶ ἐπιβληθῆναί οἱ θάνατον ζημίαν.
The events surrounding the death of Dorieus are recorded in the Attic History by Androtion. He writes that at that time the Persian king's fleet was at Caunus, and Conon was its commander. He relates that the democratic party among the Rhodians was persuaded by Conon to abandon alliance with the Lacedaemonians and shift their support to the king and the Athenians, and that Dorieus was then abroad from Rhodes, traveling among the coastal lands within the Peloponnese. He was captured by the Lacedaemonians, taken back to Sparta, found guilty by them of wrongdoing, and sentenced to death.