Passage 9.13.12
ὡς δὲ τῶν συμμάχων οἱ μὲν οὐδὲ ἀρχὴν ἀνῃροῦντο ἅτε οὐ τεθνεῶτός σφισιν οὐδενός, τῶν δὲ ὀλίγον ἐφαίνετο εἶναι τὸ διεφθαρμένον, οὕτω Λακεδαιμόνιοί τε ἔθαπτον τοὺς αὑτῶν καὶ ἤδη Σπαρτιάτας ἐξελήλεγκτο εἶναι τοὺς κειμένους. ἀπέθανον δὲ Θηβαίων τε καὶ ὅσοι παρέμειναν Βοιωτῶν ἑπτὰ καὶ τεσσαράκοντα ἄνδρες, Λακεδαιμονίων δὲ αὐτῶν πλείους ἢ χίλιοι.
Since some of their allies entirely denied having casualties, claiming that none of their men had fallen, and others appeared to have suffered only slight losses, the Lacedaemonians buried their own dead, and it had by this time become clear that those lying there were Spartans. Of the Thebans and those of the Boeotians who had remained with them, forty-seven men perished, while of the Lacedaemonians themselves more than a thousand were killed.