Rooney has questioned Slot's ability to manage a dressing room like Liverpool's over the long-term compared to predecessor Jurgen Klopp.
Asked about the claims, "Comparing people with each other is something everyone has the right to do, but is that fair to compare people with each other? We are all different.
"The only thing we have in common, Jurgen and me, is that we both won the league - and that's not too bad, is it?
"I think the more a manager wins, the more aura he has. That's in general something.
"I don't know if you agree with Wayne Rooney by the way, but if this would be the general opinion, then I think people would probably tell you last season I had more aura than this season. But maybe he's the only one who has this opinion, I don't know, you tell me. It's the first time that I heard this.
"But I think it's fair to say that Jurgen definitely has aura, yeah. I can talk about him, not about myself, but he definitely had that. But a winning manager has an aura as well."