Passage 2.24.7
ἐπανελθοῦσι δὲ ἐς τὴν ἐπὶ Τεγέας ὁδόν ἐστιν ἐν δεξιᾷ τοῦ ὀνομαζομένου Τρόχου Κεγχρεαί. τὸ δὲ ὄνομα ἐφʼ ὅτῳ τῷ χωρίῳ γέγονεν, οὐ λέγουσι, πλὴν εἰ μὴ καὶ τοῦτο ἄρα ὠνομάσθη διὰ τὸν Πειρήνης παῖδα Κεγχρίαν. καὶ πολυάνδρια ἐνταῦθά ἐστιν Ἀργείων νικησάντων μάχῃ Λακεδαιμονίους περὶ Ὑσιάς. τὸν δὲ ἀγῶνα τοῦτον συμβάντα εὕρισκον Ἀθηναίοις ἄρχοντος Πεισιστράτου, τετάρτῳ δὲ ἔτει τῆς ἑβδόμης καὶ εἰκοστῆς Ὀλυμπιάδος ἣν Εὐρύβοτος Ἀθηναῖος ἐνίκα στάδιον. καταβάντος δὲ ἐς τὸ χθαμαλώτερον ἐρείπια Ὑσιῶν ἐστι πόλεώς ποτε ἐν τῇ Ἀργολίδι, καὶ τὸ πταῖσμα Λακεδαιμονίοις ἐνταῦθα γενέσθαι λέγουσιν.
Returning again to the road leading to Tegea, on the right hand side is a place called Kenchreai near Trochos. They do not explain from where the place received its name, unless perhaps it was also named after Kenchrias, the son of Peirene. Here stand burial mounds of Argives who defeated the Spartans in battle at Hysiai. I discovered that this encounter occurred when Peisistratos was archon of the Athenians, in the fourth year of the twenty-seventh Olympiad, during which Olympiad Eurybotus of Athens won the stadion race. Descending further into lower ground, there are the ruins of Hysiai, once a city within Argolis, and the local tradition is that it was here that the Spartans suffered the defeat.