Matsya Purana — War of Devas and Asuras; Birth of Aurva Fire; Countering Tamasī Māyā through ...
तस्मिंस्तु व्युत्थिते दैत्ये निर्वीर्यैषा न संशयः शापो ह्यस्याः पुरा दत्तः सृष्टा येनैव तेजसा //
tasmiṃstu vyutthite daitye nirvīryaiṣā na saṃśayaḥ śāpo hyasyāḥ purā dattaḥ sṛṣṭā yenaiva tejasā //
But when that Daitya rose up, she became powerless—of this there is no doubt; for a curse had formerly been laid upon her by the very one whose spiritual brilliance (tejas) had brought her into being.
It does not describe Pralaya directly; it highlights a Purāṇic causal law: tejas can create, and a prior śāpa can nullify power at the decisive moment.
It underscores accountability: past deeds and authoritative pronouncements (śāpa/vara) bear fruit later—encouraging restraint, ethical conduct, and respect for ascetics and dharma to avoid ruinous consequences.
No Vāstu or temple rule is stated; the ritual takeaway is the doctrinal importance of mantra/utterance-backed śāpa and the potency of tejas in shaping outcomes.