Narada Purana — Purva Bhaga, Shloka 49
The Exposition of Nṛsiṁha Worship-Mantras, Nyāsa, Mudrās, Yantras, Kavaca, and Nṛsiṁha Gāyatrī
अष्टोत्तरशतं नित्यं जपेन्मन्त्रमतन्द्रि तः । जायते मण्डलादर्वाक् शत्रुर्वै शमनातिथिः ॥ ४९ ॥
aṣṭottaraśataṃ nityaṃ japenmantramatandri taḥ | jāyate maṇḍalādarvāk śatrurvai śamanātithiḥ || 49 ||
怠ることなく日々、真言を百八遍唱えるべきである。すると護りの輪（曼荼羅）の前では、敵でさえもまことに鎮められた客となる。
Sanatkumara (in instruction to Narada, within a mantra/ritual teaching context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
FAQs
It teaches that disciplined daily japa (108 repetitions) is not merely devotional but also a śānti-prayoga: it purifies the practitioner’s intent and generates pacifying spiritual force that neutralizes hostility.
By emphasizing nitya-japa and atandrita practice, it frames devotion as steady remembrance through mantra—where inner steadiness expresses outwardly as reconciliation and non-violence toward others.
It highlights mantra-śāstra style procedure: a fixed japa-saṅkhyā (108), vigilance in practice, and the use of a ritual maṇḍala for protective/appeasement outcomes—typical of technical disciplines discussed in Book 1.3.