Shiva Purana
ततः संस्थानमानीय वराहो महतीं महीम् ॥ स्वमेव रूपमास्थाय स्थापयामास वै विभुः ॥ ३४ ॥
The Boar brought the earth to its own place. It then assumed his natural form and fixed it there.
english translation
tataH saMsthAnamAnIya varAho mahatIM mahIm ॥ svameva rUpamAsthAya sthApayAmAsa vai vibhuH ॥ 34 ॥
hk transliteration by Sanscript