增壹阿含經 50.6.p25

50.6.p25

“Now, I know Nirvāṇa, and I know the path to Nirvāṇa. I also know that a sentient will [enter] parinirvāṇa. Perhaps there’s a sentient being that ends the contaminants. Becoming uncontaminated, their mind is liberated, and their wisdom is liberated. In their present body, they grasp this realization and become a wandering teacher. I fully know of them.