This is not possible. There is no database of sources inside an LLM. Just like the knowledge in your brain does not have sources attached. For an example, you

This is not possible. There is no database of sources inside an LLM. Just like the knowledge in your brain does not have sources attached. For an example, you referenced "what happened with Google News's home page". Could you give me your source? You could probably search for some suitable article for a reference, but you don't know a source from your memory.