Matsya Purana — Yadu Lineage
प्रसह्य हत्वा शिष्टांस्तु पातालं प्रापयामहे ततो देवास्तु संरब्धा दानवान् उपसृत्य ह //
prasahya hatvā śiṣṭāṃstu pātālaṃ prāpayāmahe tato devāstu saṃrabdhā dānavān upasṛtya ha //
“Having violently slain the righteous and driving them down into Pātāla, they acted thus.” Thereupon the gods, enraged, approached the Dānavas to confront them.
It is not a Pralaya verse; it reflects the ongoing maintenance of cosmic order where the Devas react when the righteous are oppressed and cast into the netherworld (Pātāla).
By implication, it supports the dharmic duty to protect śiṣṭas (righteous people) and restrain violent wrongdoing—an ethical model mirrored in royal governance (rakṣaṇa of subjects) and household conduct (non-violence and support of dharma).
No direct Vāstu or ritual procedure is stated; the verse is narrative, using Pātāla as a cosmological locale rather than prescribing temple-building or rites.