Gayāsīsasutta
Ekaṁ samayaṁ bhagavā gayāyaṁ viharati gayāsīse. Tatra kho bhagavā bhikkhū āmantesi …pe… “pubbāhaṁ, bhikkhave, sambodhā anabhisambuddho bodhisattova samāno obhāsaññeva kho sañjānāmi, no ca rūpāni passāmi.
At Gayā Head
At one time the Buddha was staying near Gayā on Gayā Head. There the Buddha addressed the mendicants: “Mendicants, before my awakening—when I was still not awake but intent on awakening—I perceived light but did not see forms.