Matsya Purana — Yadu Lineage
युगाख्यासुरसम्पूर्णं ह्य् आसीद् अत्याकुलं जगत् निदेशस्थायिनश्चापि तयोर्देवासुराः समम् //
yugākhyāsurasampūrṇaṃ hy āsīd atyākulaṃ jagat nideśasthāyinaścāpi tayordevāsurāḥ samam //
Indeed, the world became utterly agitated, filled with the Asuras called the Yugākhyas; and equally, both the Devas and the Asuras stood obedient to the commands of those two.
It does not describe Pralaya directly; it portrays a phase of intense worldly disturbance where demonic forces dominate, a common Purāṇic marker of dharmic imbalance rather than cosmic dissolution.
By depicting a world “in turmoil” under coercive command, it implies the ethical need for dharma-based governance and restraint of oppressive power—core Matsya Purāṇa themes applied to kingship and social order.
No Vāstu/ritual procedure is stated in this verse; it is narrative context about Deva–Asura dynamics, not temple architecture rules or rites.