|Canto 7: The Science of God||Chapter 6: Prahlāda Instructs His Demoniac Schoolmates|
Bhaktivedanta VedaBase: Śrīmad Bhāgavatam 7.6.28
śrutam etan mayā pūrvaḿ
dharmaḿ bhāgavataḿ śuddhaḿ
śrutam — heard; etat — this; mayā — by me; pūrvam — formerly; jñānam — confidential knowledge; vijñāna-saḿyutam — combined with its practical application; dharmam — transcendental religion; bhāgavatam — in relationship with the Supreme Personality of Godhead; śuddham — having nothing to do with material activities; nāradāt — from the great saint Nārada; deva — the Supreme Lord; darśanāt — who always sees.
Prahlāda Mahārāja continued: I received this knowledge from the great saint Nārada Muni, who is always engaged in devotional service. This knowledge, which is called bhāgavata-dharma, is fully scientific. It is based on logic and philosophy and is free from all material contamination.
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His Divine Grace A. C. Bhaktivedanta Swami Prabhupāda, Founder Ācārya of the International Society for Krishna Consciousness