Samannaphalasutta 20.8

20.8

Tattha natthi “imināhaṃ sīlena vā vatena vā tapena vā brahmacariyena vā aparipakkaṃ vā kammaṃ paripācessāmi, paripakkaṃ vā kammaṃ phussa phussa byantiṃ karissāmī”ti hevaṃ natthi.

And here there is no such thing as this: “By this precept or observance or fervent austerity or spiritual practice I shall force unripened deeds to bear their fruit, or eliminate old deeds by experiencing their results little by little,” for that cannot be.