I can't find these guys names. If I recall correctly one is a roman that was advising and the other one of the leaders of the Seleucid. In the moment I'm thinking of it was during a parade showing the military might of the Seleucid's and the leader asked is this enough to beat rome? and the advisor knew they didn't have a chance but said it was enough
I'm not sure this is it, but it involves Hannibal Barca (who obviously wasn't a Roman) and Antiochus III, who Antiochus III paraded his army and asked him if it would be enough for the Romans for his planned invasion of Greece, and Hannibal allegedly responded ambiguously ""I think all this will be enough, yes, quite enough, for the Romans, even though they are most avaricious."