Passage 4.24.6
Σπαρτιάταις δὲ ἐν οὐδενὶ λόγῳ θεμένοις τοὺς ἱκέτας ἀπήντησεν ἐκ Ποσειδῶνος μήνιμα, καί σφισιν ἐς ἔδαφος τὴν πόλιν πᾶσαν κατέβαλεν ὁ θεός. ἐπὶ δὲ τῇ συμφορᾷ ταύτῃ καὶ τῶν εἱλώτων ὅσοι Μεσσήνιοι τὸ ἀρχαῖον ἦσαν, ἐς τὸ ὄρος τὴν Ἰθώμην ἀπέστησαν. Λακεδαιμόνιοι δὲ ἄλλα τε μετεπέμποντο συμμαχικὰ ἐπʼ αὐτοὺς καὶ Κίμωνα τὸν Μιλτιάδου πρόξενόν σφισιν ὄντα καὶ Ἀθηναίων δύναμιν· ἀφικομένους δὲ τοὺς Ἀθηναίους ὑποπτεῦσαι δοκοῦσιν ὡς τάχα νεωτερίσοντας καὶ ὑπὸ τῆς ὑποψίας ἀποπέμψασθαι μετʼ οὐ πολὺ ἐξ Ἰθώμης.
Since the Spartans disregarded entirely those who had taken refuge as suppliants, the wrath of Poseidon fell upon them, and the god razed their entire city to the ground. Amid this disaster, those helots originally of Messenian descent revolted and withdrew to Mount Ithome. In response, the Lacedaemonians summoned various allies against them, including Cimon, son of Miltiades, who was their proxenos, along with the Athenian forces. However, the Athenians, after they arrived, were suspected of intending rebellion, and due to this suspicion, the Spartans soon afterwards dismissed them from Ithome.