Mahabharata 5.38.21

कर्मणां तु प्रशस्तानामनुष्ठानं सुखावहम्तेषामेवाननुष्ठानं पश्चात्तापकरं महत्

karmaṇāṃ tu praśastānāmanuṣṭhānaṃ sukhāvahamteṣāmevānanuṣṭhānaṃ paścāttāpakaraṃ mahat

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