sources = [s.node.get_text() for s in response.source_nodes]
no_text: Only runs the retriever to fetch the nodes that would have been sent to the LLM, without actually sending them. Then can be inspected by checking response.source_nodes.
result = query_engine.query("prompt")
you can do result.source_nodesnodes_mongo = index_1.docstore.docs nodes_notion = index_2.docstore.docs