Valmiki Ramayana Sundara Kanda Sarga 21 Shloka 24
Original Shlokaरामस्य धनुषः शब्दं श्रोष्यसि त्वं महास्वनम्।।5.21.24।। शतक्रतुविसृष्टस्य निर्घोषमशनेरिव।
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शतक्रतुविसृष्टस्य released by Indra who has performed a hundred yajnas, अशनेः of a thunderbolt, निर्घोषमिव like the rumble, रामस्य Rama's, धनुषः bow's, महास्वनम् great twang, शब्दम् sound, त्वम् you, श्रोष्यसि you will hear.
"You will hear the terrible twang of Rama's bow resembling the rumble of the thunderbolt released by Indra who performed a hundred yajnas.