Bhagavatapurana 5.4.13

5.4.13

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yavīyāṃsa ekāśītir jāyanteyāḥ pitur ādeśakarā mahā-śālīnā mahā-śrotriyā yajña-śīlāḥ karma-viśuddhā brāhmaṇā babhūvuḥ //

13. The younger eighty-one sons of Jayanti carried out the commands of their father, were highly docile, pious, thoroughly versed in the Vedas, and devoted to sacrificial duty and, being purified by their works became Brahmanas, *i.e.*, were devoted to the contemplation of Brahman.