Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 10
Sanskrit:
उपर्यध: समन्ताच्च शिखाभिर्वह्निसूर्ययो: ।दह्यमानं विभात्यण्डं दग्धगोमयपिण्डवत् ॥ १० ॥
ITRANS:
upary adhaḥ samantāc caśikhābhir vahni-sūryayoḥdahyamānaṁ vibhāty aṇḍaṁdagdha-gomaya-piṇḍa-vat
Translation:
Burned from all sides — from above by the blazing sun and from below by the fire of Lord Saṅkarṣaṇa — the universal sphere will glow like a burning ball of cow dung.