You should also take care to vet the secondary sources cited by a generative AI tool—with the caveat that AI tools do not always cite sources or, when they do, do not always indicate precisely what a given source has contributed. If you cite an AI summary that includes sources and do not go on to consult those sources yourself, MLA recommends that you acknowledge secondary sources in your work.

For example, if you ask Bing AI to explain the concept of the political unconscious, citing sources, and it provides the following answer ... 

... and you then decide to quote from the final sentence. You need to click through to the source listed in the note in order to get more information than just a URL for the source.

There, you will read the following:

Now, you can treat Oxford Reference as your source since Bing AI was merely a research conduit to the source.