Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
द्विपाधिरूढो दैत्येन्द्रो हतदुन्दुभिना ततः कल्पान्ताम्बुधराभेण दुर्धरेणापि दानवः //
dvipādhirūḍho daityendro hatadundubhinā tataḥ kalpāntāmbudharābheṇa durdhareṇāpi dānavaḥ //
Then the lord of the Daityas, mounted upon an elephant, advanced—himself a formidable Dānava—bearing the mighty force/weapon called Hatadundubhi, and appearing like a dark cloud at the end of a kalpa, hard to withstand.
It does not describe Pralaya directly; it uses “kalpānta-cloud” imagery to convey overwhelming, end-of-age intensity in battle—an apocalyptic simile rather than an actual dissolution account.
Indirectly, it frames the scale of conflict and the presence of powerful adversaries; in Purāṇic ethics, such depictions support the idea that rulers must cultivate courage, preparedness, and protection of order (dharma) against destabilizing forces.
None explicitly. The verse is martial and poetic, focused on a Daitya-king’s approach and terrifying appearance, not on Vāstu, temple rules, or ritual procedure.