Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 30
Sanskrit:
उग्रसेनसुत: कंस: स्वसु: प्रियचिकीर्षया । रश्मीन् हयानां जग्राह रौक्मै रथशतैर्वृत: ॥ ३० ॥
ITRANS:
ugrasena-sutaḥ kaṁsaḥsvasuḥ priya-cikīrṣayāraśmīn hayānāṁ jagrāharaukmai ratha-śatair vṛtaḥ
Translation:
Kaṁsa, the son of King Ugrasena, in order to please his sister Devakī on the occasion of her marriage, took charge of the reins of the horses and became the chariot driver. He was surrounded by hundreds of golden chariots.