Mahāsupinasutta
“Tathāgatassa, bhikkhave, arahato sammāsambuddhassa pubbeva sambodhā anabhisambuddhassa bodhisattasseva sato pañca mahāsupinā pāturahesuṁ. Katame pañca? Tathāgatassa, bhikkhave, arahato sammāsambuddhassa pubbeva sambodhā anabhisambuddhassa bodhisattasseva sato ayaṁ mahāpathavī mahāsayanaṁ ahosi, himavā pabbatarājā bibbohanaṁ ahosi, puratthime samudde vāmo hattho ohito ahosi, pacchime samudde dakkhiṇo hattho ohito ahosi, dakkhiṇe samudde ubho pādā ohitā ahesuṁ. Tathāgatassa, bhikkhave, arahato sammāsambuddhassa pubbeva sambodhā anabhisambuddhassa bodhisattasseva sato ayaṁ paṭhamo mahāsupino pāturahosi.
The Great Dreams
“Mendicants, before his awakening five great dreams appeared to the Realized One, the perfected one, the fully awakened Buddha, when he was still not awake but intent on awakening. What five? This great earth was his bed. Himalaya, king of mountains, was his pillow. His left hand was laid down in the eastern sea. His right hand was laid down in the western sea. And both his feet were laid down in the southern sea. This is the first great dream that appeared to the Realized One before his awakening.