Matsya Purana — The Madana-Dvādaśī Vow and the Birth of the Maruts
स्यमन्तपञ्चके क्षेत्रे सरस्वत्यास्तटे शुभे भर्तुर् आराधनपरा तप उग्रं चचार ह //
syamantapañcake kṣetre sarasvatyāstaṭe śubhe bhartur ārādhanaparā tapa ugraṃ cacāra ha //
In the holy region of Syamantapañcaka, upon the auspicious bank of the Sarasvatī, she—devoted to the worship of her husband—undertook and practiced fierce austerities (tapas).
This verse does not describe Pralaya directly; it highlights tapas (austerity) and sacred geography, themes that often prepare characters for major cosmic or dharmic developments elsewhere in the Purana.
It emphasizes marital devotion and disciplined religious practice—virtues aligned with gṛhastha-dharma (householder duty), where worship, vows, and self-restraint are upheld as stabilizing forces for family and society.
The ritual takeaway is the sanctity of performing worship and austerity at a tīrtha—especially on a riverbank—an idea later echoed in Matsya Purana guidance on choosing auspicious sites for rites, temples, and religious observances.