Matsya Purana — Yadu Lineage
*शुक्र उवाच मन्त्रानिच्छाम्यहं देव ये न सन्ति बृहस्पतौ पराभवाय देवानाम् असुराणां जयाय च //
*śukra uvāca mantrānicchāmyahaṃ deva ye na santi bṛhaspatau parābhavāya devānām asurāṇāṃ jayāya ca //
Śukra said: “O God, I desire those mantras that are not possessed by Bṛhaspati—so that the Devas may be brought to defeat and the Asuras may attain victory.”
This verse does not address Pralaya; it focuses on mantra-knowledge as a means of power in the Deva–Asura conflict, highlighting how sacred formulas are treated as strategic assets.
Indirectly, it reflects the Purāṇic idea that counsel, learning, and exclusive expertise can shift outcomes in conflict—useful to kings in statecraft—while also warning householders that knowledge can be sought for righteous or self-serving aims.
No Vāstu or temple-building rule is stated here; the ritual significance lies in mantras as specialized, lineage-bound knowledge (associated with priestly authority and victory rites).