Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
कर्तव्यतां नाध्यगच्छत् प्रोवाचेदं जनार्दनम् किमनन्तरमत्रास्ति कर्तव्यस्यावशेषितम् //
kartavyatāṃ nādhyagacchat provācedaṃ janārdanam kimanantaramatrāsti kartavyasyāvaśeṣitam //
Not having fully understood what ought to be done, he addressed Janārdana: “What, then, remains here to be done next? What part of my duty is still left unfinished?”
This verse does not directly describe Pralaya; it shows the instructional frame of the Purana—Manu seeking clarity on the next required action, a pattern also used in Pralaya-related teachings elsewhere.
It models dharmic decision-making: even a ruler/householder should ask what remains to be done, emphasizing sequential responsibility—completing obligations fully and seeking guidance on the proper “next step” rather than acting impulsively.
No specific Vastu or temple-rule term appears; however, the verse reflects a ritual-procedural mindset—after one act is done, one must verify what component (aṅga/śeṣa) remains, a principle applicable to yajña, vrata, and consecration sequences.