Passage 7.12.5
οἱ μὲν δὴ δικάζειν Λακεδαιμονίοις ἠξίουν καὶ ὑπὲρ τῆς ἑκάστου ψυχῆς, Λακεδαιμόνιοι δὲ οὔτε ἀληθῆ συνεχώρουν Δίαιον λέγειν καὶ ἀνάγειν ἤθελον ἐπὶ τὴν Ῥωμαίων βουλήν. Ἀχαιοὶ δὲ ἀντελαμβάνοντο αὖθις ἄλλου λόγου, πόλεις ὅσαι τελοῦσιν ἐς Ἀχαιοὺς μηδεμίαν ἐφʼ ἑαυτῆς καθεστηκέναι κυρίαν ἄνευ τοῦ κοινοῦ τοῦ Ἀχαιῶν παρὰ Ῥωμαίους ἰδίᾳ πρεσβείαν ἀποστέλλειν.
The Achaeans demanded that judgment against the Spartans be carried out even upon each individual's person, but the Lacedaemonians neither admitted that Diaeus spoke the truth nor wished to bring the matter before the Roman Senate. The Achaeans then took up another argument, that cities subject to the Achaean League possessed no independent right to send embassies privately to Rome without the League's common consent.