Lokasutta
Evaṁ me sutaṁ— ekaṁ samayaṁ bhagavā uruvelāyaṁ viharati najjā nerañjarāya tīre bodhirukkhamūle paṭhamābhisambuddho. Tena kho pana samayena bhagavā sattāhaṁ ekapallaṅkena nisinno hoti vimuttisukhapaṭisaṁvedī.
The World
So I have heard. At one time, when he was first awakened, the Buddha was staying in Uruvelā at the root of the tree of awakening on the bank of the Nerañjarā River. There the Buddha sat cross-legged for seven days without moving, experiencing the bliss of freedom.