Narada Purana — Purva Bhaga, Shloka 99
Jīva–Ātman Inquiry; Kṣetrajña Doctrine; Karma-based Varṇa; Four Āśramas and Sannyāsa Discipline
तपसश्च सुतप्तस्य स्वाध्यायस्य हुतस्य च । हुतेन शाम्यते पापं स्वाध्याये शांतिरुत्तमा ॥ ९९ ॥
tapasaśca sutaptasya svādhyāyasya hutasya ca | hutena śāmyate pāpaṃ svādhyāye śāṃtiruttamā || 99 ||
由善修苦行（tapas），由圣典自习（svādhyāya），并由火供（homa）之奉献：以火供能息灭罪业；以svādhyāya能得至上寂静安宁。
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It distinguishes the fruits of three purifying disciplines: homa specifically pacifies pāpa (sin), while svādhyāya culminates in the highest inner peace (śānti), with tapas supporting both as disciplined effort.
Though framed as moksha-dharma and purification, it supports bhakti indirectly: a purified mind (through homa and tapas) and a steady, scripture-saturated intellect (through svādhyāya) become fit for sustained remembrance and worship of the Lord.
Svādhyāya implies disciplined Vedic recitation and study, which practically relies on Śikṣā (phonetics) for correct chanting and Vyākaraṇa (grammar) for accurate understanding; homa points to correct ritual procedure aligned with Kalpa (ritual manuals).