Mattityahu 17:17-18

And Rebbe, Melech HaMoshiach said in reply, O perverted generation without emunah, how long shall I be with you? How long shall I put up with you? Bring him here to me. And Rebbe, Melech HaMoshiach rebuked it, and the shed came out of him, and the bocher received his refuah that hour.