Matsya Purana — Paurava Genealogy: Bharata
यदि मे ऽस्ति तपस्तप्तं सर्वान्नयतु वो यमः ततस्तान् कृप्यमाणांस्तु यमेन पुरतः स तु //
yadi me 'sti tapastaptaṃ sarvānnayatu vo yamaḥ tatastān kṛpyamāṇāṃstu yamena purataḥ sa tu //
“If I have truly performed austerity (tapas), then let Yama take you all away. And then, as those beings are being shown compassion, Yama indeed stands before them.”
This verse is not directly about cosmic dissolution; it reflects the moral order that continues across cycles—Yama’s authority and the efficacy of tapas operate as enduring principles even when broader Purana sections discuss pralaya.
It underscores accountability: a king or householder cannot rely on status, only on dharma and disciplined conduct (tapas). It also highlights compassion—mercy shown even within the domain of punishment—an ideal for righteous governance.
No Vastu or temple-building rule is stated here; the ritual takeaway is the Purāṇic emphasis that tapas (a disciplined vow/austerity) is a potent religious act influencing outcomes overseen by Yama.