Mahabharata 13.6.10

शुभेन कर्मणा सौख्यं दुःखं पापेन कर्मणाकृतं सर्वत्र लभते नाकृतं भुज्यते क्वचित्

śubhena karmaṇā saukhyaṃ duḥkhaṃ pāpena karmaṇākṛtaṃ sarvatra labhate nākṛtaṃ bhujyate kvacit

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