Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 16
Sanskrit:
ततो रथो मातलिना हरिभिर्दशशतैर्वृत: । आनीतो द्विपमुत्सृज्य रथमारुरुहे विभु: ॥ १६ ॥
ITRANS:
tato ratho mātalināharibhir daśa-śatair vṛtaḥānīto dvipam utsṛjyaratham āruruhe vibhuḥ
Translation:
Thereafter, Mātali, Indra’s chariot driver, brought Indra’s chariot, which was drawn by one thousand horses. Indra then left his elephant and got onto the chariot.