“There is, seekers, an unborn, unbecome, unmade, unconditioned state. If there were not that unborn, unbecome, unmade, unconditioned, there would be no escape possible here from what is born, become, made, and conditioned.”
Canonical Pali Original: Atthi, bhikkhave, ajātaṃ abhūtaṃ akataṃ asaṅkhataṃ. No cetaṃ, bhikkhave, abhavissa ajātaṃ abhūtaṃ akataṃ asaṅkhataṃ, na yidha jātassa bhūtassa katassa saṅkhatassa nissaraṇaṃ paññāyetha.
— Gautam Buddha
The Awakened One, Founder of Dhamma
Delivered at Anathapindika's monastery in Jeta's Grove at Savatthi, articulating the Buddhist ontological definition of Nibbana as the Unconditioned (Asankhata).