Passage 5.1.5
τῶν δὲ ἀδελφῶν οἱ τὸν μὲν καταμεῖναί φασιν αὐτοῦ, Παίονα δὲ ἀχθόμενον τῇ ἥσσῃ φυγεῖν ὡς πορρωτάτω, καὶ τὴν ὑπὲρ Ἀξιοῦ ποταμοῦ χώραν ἀπʼ αὐτοῦ Παιονίαν ὀνομασθῆναι. τὰ δὲ ἐς τὴν Ἐνδυμίωνος τελευτὴν οὐ κατὰ τὰ αὐτὰ Ἡρακλεῶταί τε οἱ πρὸς Μιλήτῳ καὶ Ἠλεῖοι λέγουσιν, ἀλλὰ Ἠλεῖοι μὲν ἀποφαίνουσιν Ἐνδυμίωνος μνῆμα, Ἡρακλεῶται δὲ ἐς Λάτμον τὸ ὄρος ἀποχωρῆσαί φασιν αὐτὸν καὶ τιμὴν αὐτῷ νέ μουσι, καὶ ἄδυτον Ἐνδυμίωνός ἐστιν ἐν τῷ Λάτμῳ.
As for the brothers, some say one of them remained there, but that Paeon, vexed at his defeat, went into exile as far away as possible, and the land beyond the river Axius was named Paeonia after him. Concerning the death of Endymion, the accounts given by the Heracleots near Miletus differ from those of the Eleans: the Eleans point out a tomb of Endymion, but the Heracleots state that he withdrew into Mount Latmus, and there they hold celebrations in his honour, and there is in Latmus a sanctuary sacred to Endymion.