Valmiki Ramayana Aranya Kanda Sarga 32 Shloka 11

तथा so also, समस्तै: by all, देवप्रहरणैः with the striking weapons of gods, अहताङ्गम् one whose limbs are not hurt, अक्षोभ्याणाम् of the imperturbable, समुद्राणाम् of the seas, क्षोभणम् one who causes agitation, क्षिप्रकारिणम् quick in action.

Ravana whose body was not hurt by the weapons in war with gods, who could perturb even the imperturbable seas, was quick in action.