Matsya Purana — Maya’s Nectar-Reservoir in Tripura and the Revival of the Slain in the Tripur...
श्रुत्वा भेरीरवं घोरं मेघारम्भितसंनिभम् न्यपतन्नसुरास्तूर्णं त्रिपुराद्युद्धलालसाः //
śrutvā bherīravaṃ ghoraṃ meghārambhitasaṃnibham nyapatannasurāstūrṇaṃ tripurādyuddhalālasāḥ //
Hearing the dreadful roar of the war-drums—like the rumbling onset of storm-clouds—the Asuras quickly rushed forth from Tripura, eager for battle.
Nothing directly about pralaya is stated here; the verse is a martial scene-setting, using storm-cloud imagery to intensify the sound of drums before battle.
Indirectly, it highlights readiness and swift response to a call-to-action; in dharma literature this parallels the kṣatriya ideal of promptness in defense and disciplined mobilization.
The only implied element is the fortified locus ‘Tripura’ (a famed stronghold); no explicit Vastu or ritual procedure is taught in this verse beyond the battlefield drum-signal motif.