Narada Purana — Purva Bhaga, Shloka 42
Maṅgalācaraṇa, Naimiṣāraṇya-Sabhā, Sūta-Āhvāna, and Narada Purāṇa-Māhātmya
ज्येष्ठमासे पूर्णिमायां मूलक्षें प्रयतो नरः । स्नात्वा च यमुना तोये मथुरायामुपोषितः ॥ ४१ ॥
jyeṣṭhamāse pūrṇimāyāṃ mūlakṣeṃ prayato naraḥ | snātvā ca yamunā toye mathurāyāmupoṣitaḥ || 41 ||
On the full-moon day of the month of Jyeṣṭha, under the Mūla asterism, a disciplined person should bathe in the waters of the Yamunā and observe upavāsa (a devotional fast) at Mathurā.
Sanatkumara (teaching Narada on vrata/tirtha observances)
Vrata: Pūrṇimā-vrata at Mathurā (Yamunā-snānopavāsa)
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It prescribes a merit-bearing observance that combines right time (Jyeṣṭha Pūrṇimā with Mūla nakṣatra), right place (Mathurā), and right act (Yamunā-snāna with fasting), a classic Purāṇic method for accumulating puṇya and purification.
By directing the devotee to Mathurā and the Yamunā—sites closely associated with Hari/Vāsudeva worship in Purāṇic tradition—the verse frames bodily discipline (fasting) and tīrtha-sevā (holy bathing) as supportive limbs that intensify devotional disposition.
Jyotiṣa (Vedāṅga astrology) is implied through the instruction to perform the rite specifically when the Mūla nakṣatra is operative, showing nakṣatra-based timing (muhūrta) for vrata and tīrtha practices.