Bhagavatapurana 2.7.10

2.7.10

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nābherasāvṛṣabha āsa sudevisūnur $ yo vai cacāra samadṛg jaḍayogacaryām &
nābherasāvṛṣabha āsa sudevisūnur $ yo vai cacāra samadṛg jaḍayogacaryām &
yat pāramahaṃsyam ṛṣayaḥ padam āmananti % svasthaḥ praśāntakaraṇaḥ parimuktasaṅgaḥ //

10. He was born of Nabhi and Sudevi and was called Rishabha; and as Rishabha with his mind and senses composed and serene, rid of all attachments, He, like one unperturbed in self-realisation, perceived the _Sama_ (Brahman everywhere) and practised the yoga of uninterrupted meditation, so that He seemed an inanimate object; which state, the Rishis call the state of being a Paramahamsa.