Matsya Purana — Śukra Warns Vṛṣaparvan: The Ripening of Adharma and Devayānī’s Demand for Śar...
*शौनक उवाच ततः कन्यासहस्रेण वृता शिबिकया तदा पितुर्निदेशात्त्वरिता निश्चक्राम पुरोत्तमात् //
*śaunaka uvāca tataḥ kanyāsahasreṇa vṛtā śibikayā tadā piturnideśāttvaritā niścakrāma purottamāt //
Śaunaka said: Then, surrounded by a thousand maidens and seated in a palanquin, she—hastening at her father’s command—set out from the excellent city.
This verse does not discuss Pralaya; it is a narrative detail describing a departure from a city in a palanquin with a large retinue, indicating courtly or royal setting.
Indirectly, it reflects social order and obedience to parental/guardian authority—she departs promptly at her father’s command—an ethical motif consistent with Purāṇic ideals of discipline and propriety.
No explicit Vāstu or ritual rule appears; the only contextual hint is the mention of an “excellent city” (purottama), a common Purāṇic descriptor for a well-established royal/urban center.