Bhagavatapurana 6.1.8

6.1.8

tasmāt puraivāśviha pāpaniṣkṛtau yateta mṛtyoravipadyatātmanā /
doṣasya dṛṣṭvā gurulāghavaṃ yathā bhiṣak cikitseta rujāṃ nidānavit //

8. Therefore a man should, before death overtakes him while the body is not yet disabled, try soon to expiate for sin here, considering its serious, or according to its simple, character, greatness or smallness, just as a physician able to know the causes of the disease would adopt remedies.