Passage 6.12.7
Θεόχρηστον δὲ Κυρηναῖον ἱπποτροφήσαντα κατὰ τὸ ἐπιχώριον τοῖς Λίβυσι καὶ αὐτόν τε ἐν Ὀλυμπίᾳ καὶ ἔτι πρότερον τὸν ὁμώνυμόν τε αὐτῷ καὶ τοῦ πατρὸς πατέρα, τούτους μὲν ἐνταῦθα ἵππων νίκας, ἐν δὲ Ἰσθμῷ τοῦ Θεοχρήστου λαβεῖν τὸν πατέρα, τὸ ἐπίγραμμα δηλοῖ τὸ ἐπὶ τῷ ἅρματι.
Theochrestus of Cyrene bred horses according to the custom of the Libyans, and won with them himself at Olympia, and, even before him, his grandfather—who shared his name—and his great-grandfather each achieved victories with horses in this place. Moreover, that Theochrestus' father also gained victories at the Isthmus is made clear by the epigram inscribed upon the chariot.