Passage 2.36.8
ἔστι δὲ ἄλσος ἱερὸν ἀρχόμενον μὲν ἀπὸ ὄρους ὃ καλοῦσι Ποντῖνον, τὸ δὲ ὄρος ὁ Ποντῖνος οὐκ ἐᾷ τὸ ὕδωρ ἀπορρεῖν τὸ ἐκ τοῦ θεοῦ, ἀλλὰ ἐς αὑτὸ καταδέχεται· ῥεῖ δὲ καὶ ποταμὸς ἀπʼ αὐτοῦ Ποντῖνος. καὶ ἐπὶ κορυφῇ τοῦ ὄρους ἱερόν τε Ἀθηνᾶς Σαΐτιδος, ἐρείπια ἔτι μόνα, καὶ θεμέλια οἰκίας ἐστὶν Ἱππομέδοντος, ὃς Πολυνείκει τῷ Οἰδίποδος τιμωρήσων ἦλθεν ἐς Θήβας.
There is there a sacred grove, beginning from a mountain called Pontinos. This Mount Pontinos does not permit the water from the god to flow away, but takes it into itself. A river called Pontinos also flows from it. On the summit of the mountain are a sanctuary of Athena Saitis—now only ruins remain—and the foundations of the house of Hippomedon, who came to Thebes to give aid to Polyneices, the son of Oedipus.