Matsya Purana — Paurava Genealogy
ऋक्षात्संवरणो जज्ञे कुरुः संवरणात् ततः यः प्रयागमतिक्रम्य कुरुक्षेत्रमकल्पयत् //
ṛkṣātsaṃvaraṇo jajñe kuruḥ saṃvaraṇāt tataḥ yaḥ prayāgamatikramya kurukṣetramakalpayat //
From Ṛkṣa was born Saṃvaraṇa, and from Saṃvaraṇa thereafter was born Kuru—he who, passing beyond Prayāga, established and laid out Kurukṣetra.
This verse does not address Pralaya; it records royal genealogy and the founding/sanctification of Kurukṣetra by King Kuru.
It highlights a king’s dharma to found and organize a kṣetra—supporting sacred spaces and social order—showing how righteous rulers shape geography into a recognized holy and cultural region.
The key term akalpayat implies “to lay out/establish,” suggesting the formal delineation of a sacred field (kṣetra); while not a Vāstu rule, it reflects the Purāṇic idea of consecrating and defining a holy landscape.