Not necessarily. ChatGPT has evolved to include a web tool that can find real citations and known sources, however it may generated fake citations, known as hallucinations.
While these citations generated by ChatGPT may look convincing, some are in essence made up on the spot. ChatGPT is a chatbot built on a language modeling AI that predicts the most likely words to come next in a sequence. That means it will generate citations, upon request, based on it's model of what those citations are likely to look like. It is not a search engine that will reliably locate real citations for you.
But don't just take my word for it:

