Passage 4.35.2
ἐδήλωσα δὲ καὶ ἐν τοῖς ἔμπροσθεν λόγοις ὅτι Ναυπλιεῦσιν ἐπὶ λακωνισμῷ διωχθεῖσι Δαμοκρατίδα βασιλεύοντος ἐν Ἄργει Μοθώνην Λακεδαιμόνιοι διδόασι καὶ ὡς οὐδὲ ἐκ τῶν Μεσσηνίων κατελθόντων ἐγένετο οὐδὲν ἐς αὐτοὺς νεώτερον· ἦσαν δὲ οἱ Ναυπλιεῖς ἐμοὶ δοκεῖν Αἰγύπτιοι τὰ παλαιότερα, παραγενόμενοι δὲ ὁμοῦ Δαναῷ ναυσὶν ἐς τὴν Ἀργολίδα ὕστερον γενεαῖς τρισὶν ὑπὸ Ναυπλίου τοῦ Ἀμυμώνης κατῳκίσθησαν ἐν Ναυπλίᾳ.
And I have mentioned in my earlier account how the Nauplians, having been expelled for their sympathy with Sparta during the reign of Damocratidas in Argos, were granted Mothone by the Lacedaemonians, and how even after the arrival of the Messenians nothing further of significance befell them. The Nauplians appear to me of old Egyptian origin, having originally come to the Argolid with Danaus aboard his ships, and three generations later were settled in Nauplia by Nauplius, son of Amymone.