Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 39
Sanskrit:
चाणूर उवाचन बालो न किशोरस्त्वं बलश्च बलिनां वर: । लीलयेभो हतो येन सहस्रद्विपसत्त्वभृत् ॥ ३९ ॥
ITRANS:
cāṇūra uvācana bālo na kiśoras tvaṁbalaś ca balināṁ varaḥlīlayebho hato yenasahasra-dvipa-sattva-bhṛt
Translation:
Cāṇūra said: You aren’t really a child or even a young man, and neither is Balarāma, the strongest of the strong. After all, You playfully killed an elephant who had the strength of a thousand other elephants.