Passage 3.16.5
ταύτας γὰρ τότε ἤλαυνεν Ἡρακλῆς, διανηξαμένας δὲ ἐπὶ Σικελίαν κατὰ τὸν ἔλαιον τὸν κυφὸν ἀνευρήσων ἐπιδιέβη---τὰς οὖν βοῦς ἔδει κρατηθέντος Ἡρακλέους τὸν Ἔρυκα ἄγοντα οἴχεσθαι. τὸ δὲ εὐμενὲς ἐκ τῶν θεῶν οὐ κατὰ ταὐτὰ Ἡρακλεῖ καὶ ὕστερον Δωριεῖ τῷ Ἀναξανδρίδου παρεγένετο, ἀλλὰ Ἡρακλῆς μὲν ἀποκτίννυσιν Ἔρυκα, Δωριέα δὲ αὐτόν τε καὶ τῆς στρατιᾶς διέφθειραν τὸ πολὺ Ἐγεσταῖοι.
For at that time Heracles was driving these cattle, and when they swam away toward Sicily, he crossed over in pursuit, arriving at the place known as "the Bent Olive." Now Eryx would have carried away the cattle if Heracles had been defeated. But divine favor, which attended Heracles, was not equally favorable later to Dorieus, the son of Anaxandridas; for whereas Heracles slew Eryx, the Egestaeans destroyed Dorieus and the greater part of his army.