Bhagavatapurana 5.1.26

5.1.26

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eteṣāṃ kavir mahāvīraḥ savana iti traya āsann ūrdhva-retasas ta ātma-vidyāyām arbha-bhāvād ārabhya kṛta-paricayāḥ pāramahaṃsyam evāśramam abhajan //

26. Of these Kavi, Mahavira, Savana—these three were bachelors throughout life; they from their infancy cultivated acquaintance with the science of Self-knowledge and adopted only the strictest and highest form of ascetic life.