Matsya Purana — Dynastic Genealogies: Paurava–Anu Lines
संजयस्याभवत्पुत्रो वीरो नाम पुरंजयः जनमेजयो महाराज पुरंजयसुतो ऽभवत् //
saṃjayasyābhavatputro vīro nāma puraṃjayaḥ janamejayo mahārāja puraṃjayasuto 'bhavat //
Sañjaya had a son, the valiant one named Puraṃjaya; and King Janamejaya was born as the son of Puraṃjaya.
This verse does not discuss pralaya or cosmology; it is a genealogical statement establishing succession from Sañjaya to Puraṃjaya to Janamejaya.
Indirectly, it frames kingship as a hereditary responsibility: the lineage record supports the Purāṇic ideal that rulers inherit not only a throne but also the obligation to protect subjects and uphold dharma.
No Vāstu, temple-building, or ritual procedure is mentioned in this verse; its focus is purely dynastic genealogy.