Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
मुमोच सुरसैन्यानां संहारे कारणं परम् प्रासान्परश्वधांश्चक्रान् बाणान्वज्रान्समुद्गरान् //
mumoca surasainyānāṃ saṃhāre kāraṇaṃ param prāsānparaśvadhāṃścakrān bāṇānvajrānsamudgarān //
He unleashed the supreme means for the destruction of the gods’ army—spears, battle-axes, discus-weapons, arrows, thunderbolts, and iron maces.
It does not describe cosmic Pralaya; it depicts battlefield “saṃhāra” (destruction) of a divine army through a barrage of weapons.
Indirectly, it reflects the Purāṇic ideal that force is an instrument (kāraṇa) used in extreme contexts—echoing the king’s duty to protect order, though the verse itself is purely martial description.
No Vāstu or ritual procedure is stated; the technical content here is the enumerated weaponry used in combat.