Valmiki Ramayana Yuddha Kanda Sarga 89 Shloka 1

ततः then, अमित्रकर्शणः tamer of enemies, दाशरथिः Dasharatha's son, शरान् arrows, सन्धाय fixing, क्रुद्धः angry, सर्पःइव like serpent, श्वसन् sighing, राक्षसेन्द्राय on Rakshasa king, ससर्ज discharged

Then Lakshmana, the tamer of enemies, sighs in anger like a serpent, fixing his arrows discharged on Rakshasa king. Dreadful and tumultuous fight takes place between Lakshmana and Indrajith with an exchange of a volley of arrows.