Bhagavatapurana 5.20.22

5.20.22

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yāsām ambhaḥ pavitram amalam upayuñjānāḥ puruṣa-ṛṣabha-draviṇa-devaka-saṃjñā varṣa-puruṣā āpomayaṃ devam apāṃ pūrṇenāñjalinā yajante //

22. Making use of the pure and hallowed waters of those rivers the peoples of these continents, known as Purushas, Rishabhas, Dravinas, and Devakas, worship the Lord in the form of water with their joined hands full of water.