Padmapurana 2.67.17

Padmapurāṇa 2.67.17

dattaṃhutaṃbhavettasyaniṣphalaṃnātrasaṃśayaḥ
brāhmaṇaḥkṣatriyovaiśyaḥśūdraścāpicaturthakaḥ