Matsya Purana — The Slaying of Tāraka: Skanda’s Śakti and the Victory of the Devas
तस्मिन्विनिहते दैत्ये त्रिदशानां महोत्सवे नाभूत् कश्चित् तदा दुःखी नरकेष्वपि पापकृत् //
tasminvinihate daitye tridaśānāṃ mahotsave nābhūt kaścit tadā duḥkhī narakeṣvapi pāpakṛt //
When that demon had been slain and the gods were holding a great festival, at that time no one was unhappy— not even a sinner in the hells.
It does not describe Pralaya directly; it highlights a cosmic-scale restoration of well-being after the destruction of a demonic force, suggesting a return to order (dharma) rather than dissolution.
By implying that the removal of oppressive, adharmic forces brings welfare to all beings, it aligns with the royal ideal of protecting subjects and upholding dharma so that suffering diminishes even at the margins of society.
The verse is primarily narrative and ethical; its ritual note is the “great festival” of the gods, pointing to celebratory rites after the victory of dharma, not to specific Vastu or temple-building rules.