Passage 5.4.3
λέγεται δὲ ὡς καὶ τοὺς ἀνθρώπους ἐκ τῶν κωμῶν, ὅσοι τοῦ τείχους οὐ πολὺ ἀφεστήκεσαν, κατελθεῖν ἔπεισεν ἐς τὴν πόλιν καὶ πλήθει τε οἰκητόρων καὶ μείζονα καὶ εὐδαιμονεστέραν ἐς τὰ ἄλλα ἀπέφηνε τὴν Ἦλιν. ἀφίκετο δὲ αὐτῷ καὶ ἐκ Δελφῶν χρησμός, τὸν Πελοπίδην ἐπάγεσθαι συνοικιστήν· Ὄξυλος δὲ τὴν ζήτησιν ἐποιεῖτο σπουδῇ καὶ ἀναζητῶν εὗρεν Ἀγώριον τὸν Δαμασίου τοῦ Πενθίλου τοῦ Ὀρέστου, καὶ αὐτόν τε ἐξ Ἑλίκης τῆς Ἀχαιῶν καὶ σὺν τῷ Ἀγωρίῳ μοῖραν τῶν Ἀχαιῶν ἐπηγάγετο οὐ πολλήν.
It is said that he persuaded even the inhabitants from the villages, those which were situated not far from the wall, to move down into the city, thus making Elis both greater in population and larger and wealthier in all respects. Indeed, an oracle came to him from Delphi instructing him to bring in a descendant of Pelops as co-founder. Oxylus eagerly undertook the search, and in seeking he discovered Agorius, son of Damasius, son of Penthilus, son of Orestes; and from Helice of Achaea Oxylus brought Agorius himself, along with a small company of Achaeans.