Matsya Purana — Dynastic Genealogies: Paurava–Anu Lines
प्रतिष्ठामागतानां हि ब्राह्मण्यं कारयंस्ततः ततो मानुषयोन्यां स जनयामास वै प्रजाः //
pratiṣṭhāmāgatānāṃ hi brāhmaṇyaṃ kārayaṃstataḥ tato mānuṣayonyāṃ sa janayāmāsa vai prajāḥ //
Indeed, once they had become settled and established, he caused the Brahminical order to be instituted. Thereafter, through human generation in the human womb, he truly brought forth progeny.
It reflects the post-crisis re-ordering of life: once beings are re-established, social-religious order (brāhmaṇya) is instituted and human progeny begins again through normal human birth.
It implies governance through dharma: establishing brāhmaṇya (supporting Vedic learning, ritual, and ethical norms) is a key duty of the ruler/progenitor, enabling stable society and lawful procreation.
Ritually, it highlights instituting brāhmaṇya—i.e., the restoration of Vedic rites and priestly functions—rather than a direct Vāstu/temple-building rule in this specific verse.