Gandalf on the Peak of Zirak-Zigil.
Thunder they heard, and lightning, they said, smote upon Celebdil, and leapt back broken into tongues of fire. Is not that enough? A great smoke rose about us, vapour and steam. Ice fell like rain. I threw down my enemy, and he fell from the high place and broke the mountain-side where he smote it in his ruin.
The Lord of The Rings, pages 523-524.