Valmiki Ramayana Aranya Kanda Sarga 24 Shloka 18

वीर्यवान् valiant, सः he, महत् huge, चापम् bow, उद्यम्य lifting, ज्यास्वनैः by the twangs of the bowstring, दिशः all directions, पूरयन् filling, तत्र there, अवस्थितः बभूव stayed.

Valiant Rama lifted the huge bow and arrows and stood there, filling the directions with the twangs of his bow.