I'm writing a paper on Aspasia--ancient Greek woman rhetorician--and in Plato's Menexenus he attributes a funeral oration to her. I found references in a couple of places to Cicero saying that the funeral oration was read yearly by Athenians after the Menexenus' publication, but the citations of Cicero are sloppy and I can't track it down.
Can you help me find the place where Cicero talks about it? I've found a bunch of dead ends.