Valmiki Ramayana Yuddha Kanda Sarga 46 Shloka 20
Original Shlokaगवाक्षंशरभंचैवद्वावप्यमिततेजसौ ।।6.46.20।। द्वाभ्यांद्वाभ्यांमहावेगोविव्याधयुधिरावणिः ।
1 source checked for this shloka
महावेगः endowed with speed, रावणिः Indrajith, युधि in war, अमिततेजसौ highly energetic, तौ both, गवाक्षम् Gavaksha, शरभंचैव Sarabha, द्वाभ्यांद्वाभ्याम् two and two, विव्याध attacked.
Indrajith endowed with speed in war, attacked highly energetic Gavaksha and Sarabha with two arrows each.