Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
ततः प्रशान्ते शैलास्त्रे जम्भो भूधरसंनिभः ऐषीकमस्त्रमकरोद् अभीतो ऽतिपराक्रमः //
tataḥ praśānte śailāstre jambho bhūdharasaṃnibhaḥ aiṣīkamastramakarod abhīto 'tiparākramaḥ //
Then, when the mountain-weapon (śailāstra) had been pacified, Jambha—resembling a mighty mountain—fearless and of tremendous prowess, deployed the Aiṣīka weapon.
This verse does not discuss Pralaya; it depicts a combat sequence where one weapon (Śailāstra) is neutralized and another (Aiṣīka-astra) is launched.
Indirectly, it reflects the Purāṇic ideal of steadfastness under pressure—fearlessness and resolve—qualities praised in rulers and protectors, though the verse itself is strictly martial narration.
No Vāstu or ritual procedure is stated; the technical significance lies in astra-vocabulary, showing the Purāṇic cataloging of named weapons and their deployment in mythic warfare.