Passage 3.26.6
ὃ δὲ οἶδα ἐν τῇ πρὸς θαλάσσῃ χώρᾳ τῆς Λευκτρικῆς ἐπʼ ἐμοῦ συμβάν, γράφω. ἄνεμος πῦρ ἐς ὕλην ἐνεγκὼν τὰ πολλὰ ἠφάνισε τῶν δένδρων· ὡς δὲ ἀνεφάνη τὸ χωρίον ψιλόν, ἄγαλμα ἐνταῦθα ἱδρυμένον εὑρέθη Διὸς Ἰθωμάτα. τοῦτο οἱ Μεσσήνιοί φασι μαρτύριον εἶναί σφισι τὰ Λεῦκτρα τὸ ἀρχαῖον τῆς Μεσσηνίας εἶναι· δύναιτο δʼ ἂν καὶ Λακεδαιμονίων τὰ Λεῦκτρα ἐξ ἀρχῆς οἰκούντων ὁ Ἰθωμάτας Ζεὺς παρʼ αὐτοῖς ἔχειν τιμάς.
But what I know having happened in my own time in the coastal region of Leuktra, I will record. A wind carried fire into a wood and destroyed most of the trees. When the place was left bare, there was discovered, set up there, a statue of Zeus Ithomatas. This, according to the Messenians, is proof that Leuktra originally belonged to Messenia; yet it is also possible that Zeus Ithomatas received honor from the Lacedaemonians residing there from ancient times.