Matsya Purana — The Battle at Tripura: Shiva’s Strategy
यमो गदास्त्रो वरुणश्च भास्करस् तथा कुमारो ऽमरकोटिसंयुतः स्वयं च शक्रः सितनागवाहनः कुलीशपाणिः सुरलोकपुंगवः //
yamo gadāstro varuṇaśca bhāskaras tathā kumāro 'marakoṭisaṃyutaḥ svayaṃ ca śakraḥ sitanāgavāhanaḥ kulīśapāṇiḥ suralokapuṃgavaḥ //
Yama, bearing the mace as his weapon; Varuṇa; and Bhāskara (the Sun); and Kumāra (Skanda), attended by crores of immortals—together with Śakra (Indra) himself, whose mount is the white elephant, the wielder of the thunderbolt (vajra), the foremost champion of the heavenly world—(all were present).
This verse does not describe pralaya directly; it lists major deities and their identifying attributes, indicating a divine gathering/attendance rather than a creation-or-dissolution event.
Indirectly, it foregrounds Yama (justice), Varuṇa (cosmic order), and Indra (sovereignty), which Purāṇic ethics often mirror in royal duty: protection, lawful punishment, and maintenance of order—though the verse itself is primarily descriptive.
No explicit Vāstu or temple-building rule appears here; the main ritual/ikonographic takeaway is the standard identification of deities by weapons and mounts (e.g., Indra with vajra and Airāvata), useful for pratīmā-lakṣaṇa (iconographic recognition).