Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 8
Sanskrit:
स तानापततो वीर उग्रधन्वा महारथ: । एकैकं युगपत्सर्वानहन् बाणैस्त्रिभिस्त्रिभि: ॥ ८ ॥
ITRANS:
sa tān āpatato vīraugra-dhanvā mahā-rathaḥekaikaṁ yugapat sarvānahan bāṇais tribhis tribhiḥ
Translation:
Dhruva Mahārāja, who was a great charioteer and certainly a great bowman also, immediately began to kill them by simultaneously discharging arrows three at a time.