Matsya Purana — Vishnu’s Battle with Mathana
पट्टिशैर्मुशलैः पाशैर् गदाभिः कुणपैरपि तीक्ष्णाननैश्च नाराचैश् चक्रैः शक्तिभिरेव च //
paṭṭiśairmuśalaiḥ pāśair gadābhiḥ kuṇapairapi tīkṣṇānanaiśca nārācaiś cakraiḥ śaktibhireva ca //
They struck with battle-axes, clubs, nooses, and maces; also with barbed missiles; with sharp-pointed arrows, discus-weapons, and spears as well.
Nothing directly—this verse is not about pralaya; it is a martial catalogue describing the kinds of weapons used in battle.
It aligns with rājadharma: a king must maintain an equipped army and understand weaponry and battlefield methods to protect subjects and uphold order.
No Vāstu or ritual procedure is stated here; the verse is strictly focused on armaments (axes, clubs, nooses, maces, arrows, discus, spears).