Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 19
Sanskrit:
उपसृज्य तमस्तीव्रं जहाराश्वं पुनर्हरि: ।चषालयूपतश्छन्नो हिरण्यरशनं विभु: ॥ १९ ॥
ITRANS:
upasṛjya tamas tīvraṁjahārāśvaṁ punar hariḥcaṣāla-yūpataś channohiraṇya-raśanaṁ vibhuḥ
Translation:
My dear Vidura, Indra, being the King of heaven and very powerful, immediately brought a dense darkness upon the sacrificial arena. Covering the whole scene in this way, he again took away the horse, which was chained with golden shackles near the wooden instrument where animals were sacrificed.