Valmiki Ramayana Yuddha Kanda Sarga 44 Shloka 35

पापः sinful, रणकर्कशः capable of encounter, सःरावणि that Ravana, अदृश्यः rising up, अशनिवर्चसः remaining invisible, निशितान् sharp arrows, बाणान् by arrows, मुमोच remained.

That sinful son of Ravana, who is capable of encountering rising up remained invisible and shot sharp arrows.