Silavantasutta 1.8

1.8

Ṭhānaṃ kho panetaṃ, āvuso, vijjati yaṃ sīlavā bhikkhu ime pañcupādānakkhandhe aniccato …pe… anattato yoniso manasi karonto sotāpattiphalaṃ sacchikareyyā”ti.

It’s possible that an ethical mendicant who rationally applies the mind to the five grasping aggregates will realize the fruit of stream-entry.”