Passage 7.11.5
Σικυώνιοι μὲν οὖν οὐκ ἀφικομένοις ἐς καιρὸν τῆς κρίσεως Ἀθηναίοις ζημίαν πεντακόσια τάλαντα ἐπιβάλλουσι, Ῥωμαίων δὲ ἡ βουλὴ δεηθεῖσιν Ἀθηναίοις ἀφίησι πλὴν ταλάντων ἑκατὸν τὴν ἄλλην ζημίαν· ἐξέτισαν δὲ οὐδὲ ταῦτα οἱ Ἀθηναῖοι, ἀλλὰ ὑποσχέσεσι καὶ δώροις ὑπελθόντες Ὠρωπίους ὑπάγονται σφᾶς ἐς ὁμολογίαν φρουράν τε Ἀθηναίων ἐσελθεῖν ἐς Ὠρωπὸν καὶ ὁμήρους λαβεῖν παρὰ Ὠρωπίων Ἀθηναίους· ἢν δὲ αὖθις ἐς Ἀθηναίους γένηται ἔγκλημα Ὠρωπίοις, τὴν φρουρὰν τότε ἀπάγειν παρʼ αὐτῶν Ἀθηναίους, ἀποδοῦναι δὲ καὶ ὀπίσω τοὺς ὁμήρους.
The Sicyonians, therefore, imposed a fine of five hundred talents upon the Athenians, who had failed to arrive on time for the trial. However, the Roman senate, after an appeal from the Athenians, remitted all but one hundred talents of this penalty. Yet even this amount the Athenians did not pay; instead, by means of assurances and gifts, they secretly induced the Oropians to enter into an agreement whereby an Athenian garrison was introduced into Oropus and hostages from the Oropians were given to Athens. The arrangement further provided that, should the Athenians again bring charges against the Oropians, they were then immediately to withdraw their garrison and return the hostages.