Narada Purana — Purva Bhaga, Shloka 158
Mokṣopāya: Bhakti-rooted Jñāna and the Aṣṭāṅga Yoga of Viṣṇu-Meditation
जपन्तः प्रणवं नित्यं मुच्यन्ते सर्वपातकैः । तदभ्यासेन संयुक्ताः परं मोक्षं लभन्ति च ॥ ५८ ॥
japantaḥ praṇavaṃ nityaṃ mucyante sarvapātakaiḥ | tadabhyāsena saṃyuktāḥ paraṃ mokṣaṃ labhanti ca || 58 ||
恒常持诵圣音“普罗那瓦”(唵 Oṁ)者，得脱一切罪垢；并以此持诵之恒修相应，亦能证得至上解脱（mokṣa）。
Sanatkumara (teaching Narada in the dialogue on dharma and liberation)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It declares Oṁ (Pranava) as a direct liberating practice: constant japa removes even grave sins and, when sustained as disciplined abhyāsa, culminates in supreme moksha.
By prescribing continuous remembrance through mantra-japa, it frames devotion as steady, daily absorption in the divine sound-symbol (Oṁ), where purity (freedom from pāpa) matures into liberation.
The practical discipline is mantra-prayoga (correct daily japa and sustained abhyāsa); it implicitly relies on Śikṣā (proper pronunciation) and Vyākaraṇa (sound/phonetic clarity) to keep the Pranava recitation precise.