Matsya Purana — Paurava Genealogy: Bharata
तस्य राज्यं प्रतिश्रुत्य नीपान् आजघ्निवान् प्रभुः उवाच सान्त्वं विविधं जघ्नुस्ते वै ह्य् उभाव् अपि //
tasya rājyaṃ pratiśrutya nīpān ājaghnivān prabhuḥ uvāca sāntvaṃ vividhaṃ jaghnuste vai hy ubhāv api //
Having promised him the kingdom, the mighty lord then struck down the Nīpas. He also spoke many conciliatory words—yet in the end, indeed, both sides came to blows.
This verse does not address Pralaya; it belongs to a dynastic-royal narrative focusing on political promise, conciliation, and violent conflict.
It highlights a Rajadharma tension: a ruler may attempt sāntva (conciliation) and diplomacy, yet must also confront threats to stability—showing the peril of contested promises of kingship.
No Vāstu, temple-building, or ritual procedure is stated; the verse is political-historical rather than architectural.