Passage 6.1.5
ἀπὸ τούτου δὲ καὶ νόμος ἐγένετο Ἠλείοις μηδὲ ἵππους τοῦ λοιποῦ τῶν ἑλλανοδικούντων καθιέναι μηδένα---, τούτου μὲν δὴ τὸν ἀνδριάντα ἐποίησε Λύσιππος · ἡ δὲ τοῦ Δεινολόχου μήτηρ εἶδεν ὄψιν ὀνείρατος ὡς ἔχοιτο τοῦ παιδὸς ἐν τοῖς κόλποις ἐστεφανωμένου, καὶ τοῦδε ἕνεκα ἐς τὸν ἀγῶνα ὁ Δεινόλοχος ἠσκήθη καὶ τοὺς παῖδας παρέθει τρέχων. Σικυωνίου δὲ Κλέωνός ἐστιν ἡ εἰκών.
From this event onward the Eleans passed a law that none of the Hellanodikai should enter horses for the competitions thereafter. Lysippos made the statue of this man. Now, Deinolochos' mother dreamed that she held her son in her arms crowned with a victor's wreath. Because of this vision, Deinolochos trained himself for the contest and outran the boys competing against him. The statue is the work of Kleon from Sikyon.