I'd rather ask AI to provide a source and then cite the source. But if the source itself is AI backed, then it's a bit different :)

I explained this in a bit more depth in an adjacent reply (feel free to take a look) but obtaining the source from AI doesn't achieve the same thing. For example, there might be other links that contradict that source, which the AI wouldn't cite. Knowing that AI picked the "best" one vs. a human is incredibly relevant when assigning and weighing credibility.