Valmiki Ramayana Kishkindha Kanda Sarga 17 Shloka 47
Original Shlokaत्वयाऽदृश्येन तु रणे निहतोऽहं दुरासदः। प्रसुप्तः पन्नगेनेव नरः पानवशं गतः4.17.47।।
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दुरासदः an unassailable warrior, अहम् I am, रणे in battle, अदृश्येन not seen, त्वया by you, पानवशं गतः in a drunken state, प्रसुप्तः in deep sleep, नरः man, पन्नगेनेव like by the snake, निहतः killed
bitten to death by a snake while fast asleep.