Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 16
Sanskrit:
वृतौ गोपै: कतिपयैर्बलदेवजनार्दनौ । रङ्गं विविशतू राजन् गजदन्तवरायुधौ ॥ १६ ॥
ITRANS:
vṛtau gopaiḥ katipayairbaladeva-janārdanauraṅgaṁ viviśatū rājangaja-danta-varāyudhau
Translation:
My dear King, Lord Baladeva and Lord Janārdana, each carrying one of the elephant’s tusks as His chosen weapon, entered the arena with several cowherd boys.