Valmiki Ramayana Yuddha Kanda Sarga 25 Shloka 25
Original Shlokaक्रोधंभीममहंमोक्ष्येससैन्येत्वयिरावण: । श्वःकाल्येवज्रवान्वज्रंदानवेष्विववासवः ।।6.25.25।।
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रावण Ravana, श्वः tomorrow, काल्ये at day dawn, वज्रवान् wielder of thunderbolt, वासवः Vasava, दानवेषु at Rakshasas, वज्रम् इव like the thunder bolt, ससैन्ये even the army also, त्वयि you. भीमम् dreadful, क्रोधम् anger, अहम् of mine, मोक्ष्यामि will release.
"Tomorrow at the dawn of the day I will release my dreadful anger on Ravana and even on Rakshasas just as the thunderbolt of Indra was released on Rakshasas."