Mahabharata 12.279.16

निरन्तरं च मिश्रं च फलते कर्म पार्थिवकल्याणं यदि वा पापं न तु नाशोऽस्य विद्यते

nirantaraṃ ca miśraṃ ca phalate karma pārthivakalyāṇaṃ yadi vā pāpaṃ na tu nāśo'sya vidyate

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