Passage 3.16.4
τάδε μὲν οὕτω γενέσθαι λέγουσιν· ἰόντι δὲ ὡς ἐπὶ τὰς πύλας ἀπὸ τοῦ Χιτῶνος Χίλωνός ἐστιν ἡρῷον τοῦ σοφοῦ νομιζομένου καὶ Ἀθηνοδώρου τῶν ὁμοῦ Δωριεῖ τῷ Ἀναξανδρίδου σταλέντων ἐς Σικελίαν· ἐστάλησαν δὲ τὴν Ἐρυκίνην χώραν νομίζοντες τῶν ἀπογόνων τῶν Ἡρακλέους εἶναι καὶ οὐ βαρβάρων τῶν ἐχόντων. Ἡρακλέα γὰρ ἔχει λόγος παλαῖσαι πρὸς Ἔρυκα ἐπὶ τοῖσδε εἰρημένοις, ἢν μὲν Ἡρακλῆς νικήσῃ, γῆν τὴν Ἔρυκος Ἡρακλέους εἶναι, κρατηθέντος δὲ τῇ πάλῃ βοῦς τὰς Γηρυόνου---
These things occurred, it is said, in the manner given above. Proceeding toward the gates from the place called Chiton, there is a hero-shrine of Chilon, reputed as one of the wise men, and also that of Athenodorus, who was sent to Sicily together with Dorieus, the son of Anaxandridas. They went forth, believing that the territory of Eryx belonged rightly to the descendants of Heracles, rather than to the barbarians who held it. For tradition relates that Heracles wrestled against Eryx on the following condition: if Heracles defeated him, the land of Eryx would belong to Heracles, but if Heracles should be overcome, he would yield the cattle of Geryon—