Matsya Purana — Yadu Lineage
विष्णुस्तेषां प्रणेता च प्रभुत्वे च व्यवस्थितः निदेशस्थायिनस्तस्य कथ्यन्ते सर्वयादवाः //
viṣṇusteṣāṃ praṇetā ca prabhutve ca vyavasthitaḥ nideśasthāyinastasya kathyante sarvayādavāḥ //
Vishnu is their leader and lawgiver, firmly established in sovereignty; and all the Yadavas are said to be those who abide by His command.
This verse does not discuss Pralaya directly; it emphasizes divine governance—Vishnu as the established sovereign whose command structures righteous order within a lineage.
It frames dharma as obedience to rightful authority: just as the Yadavas are portrayed as adhering to Vishnu’s injunctions, kings and householders are to uphold rule and conduct aligned with divine/śāstric command rather than personal whim.
No explicit Vastu or ritual procedure is stated; the key takeaway is the theological principle of “nideśa” (authoritative injunction), which in Vastu/ritual contexts would mean following prescribed rules as binding directives.