Matsya Purana — Ila–Sudyumna Episode and the Expansion of the Ikṣvāku
तुष्टुवुर् विविधैः स्तोत्रैः पार्वतीपरमेश्वरौ ताव् ऊचतुर् अलङ्घ्यो ऽयं समयः किंतु साम्प्रतम् //
tuṣṭuvur vividhaiḥ stotraiḥ pārvatīparameśvarau tāv ūcatur alaṅghyo 'yaṃ samayaḥ kiṃtu sāmpratam //
They praised Pārvatī and Parameśvara with many kinds of hymns. Then the two divinities said: “This appointed time (and its obligation) cannot be transgressed—yet, for the present moment…”
This verse does not describe pralaya directly; it stresses that a divinely fixed “samaya” (appointed time/condition) is inviolable, a principle often applied in Purāṇic cosmology where cosmic timings are fixed by order.
It highlights the dharmic ideal of not violating “samaya”—understood as a vow, agreement, or appointed duty-time. For kings and householders, this supports truthfulness, keeping promises, and honoring ritually or socially binding commitments.
Ritually, it underscores the importance of correct timing (muhūrta/kāla) and the binding nature of vowed observances; while not a Vāstu rule itself, it aligns with the broader Purāṇic insistence that rites must follow prescribed time-conditions.