Matsya Purana — Vishnu’s Battle with the Daityas: Astra-Combat
जग्राह मुद्गरं घोरं दिव्यरत्नपरिष्कृतम् तं मुमोचाथ वेगेन निमिमुद्दिश्य दानवम् //
jagrāha mudgaraṃ ghoraṃ divyaratnapariṣkṛtam taṃ mumocātha vegena nimimuddiśya dānavam //
He seized a fearsome mace, adorned with divine gems, and then hurled it with great speed, aiming at Nimi—the Dānava.
This verse is not about pralaya; it depicts a combat moment—an armed assault directed at Nimi—within a heroic narrative section.
Indirectly, it reflects the Purāṇic ideal that rulers and heroes must confront disruptive forces (dānavas) decisively; the emphasis is on protection and the restoration of order rather than domestic duties.
No Vāstu or ritual procedure is stated here; the technical focus is martial (weaponry and targeting), not temple-building or rites.