Valmiki Ramayana Yuddha Kanda Sarga 109 Shloka 6
Original Shlokaतौतुतत्रनिमित्तानिदृष्टवाराघवरावणौ । कृतबुद्धीस्थिरामर्षौयुयुधातेह्यभीतवत् ।।6.109.6।।
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तौ both, रावणौ Ravana, तत्र there, निमित्तानि portents, दृष्टवा on seeing, कृतबुद्धी firm in mind, स्थिरामर्षौ indignation, अभीतवत् fearless, युयुधाते fought
Both Ravana and Rama, seeing their portents, firmly resolved in mind with indignation, fought fearlessly.