Matsya Purana — The Greatness and Procedure of the Aṅgāra
वसन्तं नैमिषारण्ये पिप्पलादं महामुनिम् अभिगम्य तदा चैनं प्रश्नमेकं करिष्यति युधिष्ठिरो धर्मपुत्रो धर्मयुक्तस्तपोधनम् //
vasantaṃ naimiṣāraṇye pippalādaṃ mahāmunim abhigamya tadā cainaṃ praśnamekaṃ kariṣyati yudhiṣṭhiro dharmaputro dharmayuktastapodhanam //
While staying in Naimiṣāraṇya, Yudhiṣṭhira—the son of Dharma, devoted to righteousness—approached the great sage Pippalāda, a treasure of ascetic power, and then put to him a single question.
This verse does not address pralaya directly; it sets a narrative frame where a dharma-minded king approaches a sage, preparing for a doctrinal teaching that may later include cosmology.
It models the royal duty of seeking guidance from realized sages: a righteous ruler (Yudhiṣṭhira) approaches a tapasyā-rich ṛṣi and asks a focused question—an ideal method for learning dharma and governance.
No explicit Vāstu or ritual procedure is stated here; the significance is contextual—Naimiṣāraṇya is a sacred learning-space where authoritative instructions (including ritual or temple rules elsewhere) are traditionally received.