Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 19
Sanskrit:
तस्याभिपश्यत: खस्थ: क्षणेन किल भारत ।गजमात्र: प्रववृधे तदद्भुतमभून्महत् ॥ १९ ॥
ITRANS:
tasyābhipaśyataḥ kha-sthaḥkṣaṇena kila bhāratagaja-mātraḥ pravavṛdhetad adbhutam abhūn mahat
Translation:
O descendant of Bharata, while Brahmā was observing Him, that boar became situated in the sky in a wonderful manifestation as gigantic as a great elephant.