Mahabharata 12.146.11

अन्तर्मृत्युरशुद्धात्मा पापमेवानुचिन्तयन्प्रबुध्यसे प्रस्वपिषि वर्तसे चरसे सुखी

antarmṛtyuraśuddhātmā pāpamevānucintayanprabudhyase prasvapiṣi vartase carase sukhī

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