Valmiki Ramayana Yuddha Kanda Sarga 96 Shloka 31
Original Shlokaततोयुद्धायतेजस्वीरक्षोगणबलैर्वृतः । निर्ययावुद्यतधनुःकालान्तकयमोपमः ।।6.96.31।।
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ततः then, तेजस्वी glowing, रक्षोगणबलैः army of Rakshasas, कालान्तकयमोपमः like the time spirit Yama, उद्यतधनुः lifted bow, युद्धाय for battle, निर्ययौ went
Then Ravana surrounded by the army of Rakshasas lifted his bow, like the Lord Yama at the time of dissolution of the universe, went for the battle glowing.