Valmiki Ramayana Yuddha Kanda Sarga 76 Shloka 23
Original Shlokaबाहुंचास्यसनिस्त्रिंशमाजघान स मुष्टिना । वालिपुत्रस्यघातेन स पपातक्षितावसिः ।।6.76.23।।
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सः he, Angada, अस्य his, सनिस्त्रिंशम् which held the sword, बाहुम् shoulders, मुष्टिना with his fist, आजघान hit him, वालिपुत्रस्य Angada, घातेन by the blow, सःअसिः that sword, क्षितौ broken, पपात fell.
Angada hit the shoulder of Prajaghna which held the sword, with his fist. By that blow the sword got broken and dropped down