Matsya Purana — The Battle at Tripura: Shiva’s Strategy
तस्यारम्भितशब्देन नन्दी दिनकरप्रभः संज्ञां प्राप्य ततः सो ऽपि विद्युन्मालिनमाद्रवत् //
tasyārambhitaśabdena nandī dinakaraprabhaḥ saṃjñāṃ prāpya tataḥ so 'pi vidyunmālinamādravat //
Roused by the sound of his onset (battle-cry), Nandī—radiant like the sun—regained awareness; and then he too rushed after Vidyunmālin.
This verse does not address pralaya or cosmology; it depicts a martial/narrative moment where Nandī regains consciousness and joins the pursuit of Vidyunmālin.
Indirectly, it reflects the Purāṇic ideal of alertness and prompt action in protecting order—qualities expected of rulers and guardians—though no explicit rājadharma or gṛhastha-dharma injunction is stated here.
No Vāstu, temple-construction, iconographic, or ritual procedure is mentioned in this verse; it is purely narrative, emphasizing recovery and swift pursuit.