Mahabharata 12.284.37

क्रियमाणं यदा कर्म नाशं गच्छति मानुषम्तेषां नान्यदृते लोके तपसः कर्म विद्यते

kriyamāṇaṃ yadā karma nāśaṃ gacchati mānuṣamteṣāṃ nānyadṛte loke tapasaḥ karma vidyate

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