Valmiki Ramayana Yuddha Kanda Sarga 110 Shloka 34
Original Shlokaइतिचिन्तापरश्चासीदप्रमत्तश्चसम्युगे । ववर्षशरवर्षाणीराघवोरावणोरसि ।।6.110.34।।
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राघवः Raghava, सम्युगे in that duel, इति thus, चिन्तापरः started thinking, अप्रमत्तश्च very alert, आसीत् not move, रावणोरसि Ravana's chest, शरवर्षाणि rain of arrows, ववर्ष rained
Even though Raghava was thinking so, yet remaining alert in the duel, rained arrows on Ravana's chest.