Mahabharata 12.280.6

अज्ञानाद्धि कृतं पापं तपसैवाभिनिर्णुदेत्पापं हि कर्म फलति पापमेव स्वयं कृतम्तस्मात्पापं न सेवेत कर्म दुःखफलोदयम्

ajñānāddhi kṛtaṃ pāpaṃ tapasaivābhinirṇudetpāpaṃ hi karma phalati pāpameva svayaṃ kṛtamtasmātpāpaṃ na seveta karma duḥkhaphalodayam

Our plain-language meaning of this verse is waiting for scholar review.