Passage 8.14.2
τὰ δὲ βάραθρα οἱ Φενεᾶται ταῦτά φασιν εἶναι χειροποίητα, ποιῆσαι δὲ αὐτὰ Ἡρακλέα τηνικαῦτα ἐν Φενεῷ παρὰ Λαονόμῃ τῇ Ἀμφιτρύωνος μητρὶ οἰκοῦντα· γενέσθαι γὰρ Ἀμφιτρύωνα ἐκ Λαονόμης Ἀλκαίῳ τῆς Γούνεω, γυναικὸς Φενεάτιδος, καὶ οὐκ ἐκ τῆς Πέλοπος Λυσιδίκης. εἰ δὲ Ἡρακλῆς ἀληθεῖ λόγῳ παρὰ τοὺς Φενεάτας μετῴκησε, πείθοιτο ἄν τις διωχθέντα ἐκ Τίρυνθος ὑπὸ Εὐρυσθέως αὐτὸν οὐκ αὐτίκα ἐς Θήβας, πρότερον δὲ ἐς Φενεὸν ἀφικέσθαι.
The pits, the Pheneatians say, were made by hand; they assert that Heracles constructed them during the time when he was living in Pheneus with Laonome, the mother of Amphitryon. For they state that Amphitryon was born to Alcaeus, son of Guneus, by Laonome, who was a woman of Pheneus, and not by Lysidice, who was the daughter of Pelops. Now if Heracles truly resided among the Pheneatians, one might reasonably suppose that after being driven out from Tiryns by Eurystheus he did not immediately go to Thebes, but came first to Pheneus.