Valmiki Ramayana Yuddha Kanda Sarga 59 Shloka 49
Original Shlokaरावणोहिमहावीर्योरणेऽद्भुतपराक्रमः । त्रैलोक्येनापिसङ्क्रुद्धोदुष्प्रसह्योनसंशयः ।।6.59.49।।
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रावणः Ravana, महावीर्यंरणे is a great hero in the battle, अद्भुतपराक्रमः wonderful valour, संक्रुद्धः angry, त्रैलोक्येनापि in the three worlds, दुष्प्रसह्यः difficult to resist, संशयः doubt, न not.
"Ravana is a great hero in the battlefield. His valour in war is wonderful. He is angry but none can withstand him in the three worlds."