Valmiki Ramayana Yuddha Kanda Sarga 69 Shloka 93

अथ now, महात्मा great, वालिपुत्रः son of Vali, अङ्गदः Angada, तदा then, मृत्युसमानवेगम् equalling vehemence of death, गिरिशृङ्गकल्पम् mountain peak, मुष्टिम् fist, संवर्त्य clenching, नरान्तकस्य Naranthaka's, उपिरि top, निपातयामास brought.

Angada clenching his fist, whose vehemence was equal to vehemence of death coming down from the top of the mountain peak, brought down Naranthaka.