Bhagavatapurana 5.19.19

5.19.19

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asminn eva varṣe puruṣair labdha-janmabhiḥ śukla-lohita-kṛṣṇa-varṇena svārabdhena karmaṇā divya-mānuṣa-nāraka-gatayo bahvya ātmana ānupūrvyeṇa sarvā hy eva sarveṣāṃ vidhīyante yathā-varṇa-vidhānam apavargaś cāpi bhavati //

19. It is in this continent Jivas coming into mortal existence and by means of their several Karma, white, red, or dark as it may be, are said to attain to their several goals, divine, human, or hellish, in numerous forms, all to be reached by each in a regular course and order; and according to the duties laid down for the several Varnas and Ashramas they attain to Moksha also.