Matsya Purana — Ila–Sudyumna Episode and the Expansion of the Ikṣvāku
श्रावस्तश्च महातेजा वत्सकस्तत्सुतो ऽभवत् निर्मिता येन श्रावस्ती गौडदेशे द्विजोत्तमाः //
śrāvastaśca mahātejā vatsakastatsuto 'bhavat nirmitā yena śrāvastī gauḍadeśe dvijottamāḥ //
O best of the twice-born, there was the mighty Śrāvasta; his son was Vatsaka. It was by him that the city of Śrāvastī was founded in the land of Gauḍa.
This verse does not discuss Pralaya; it belongs to the dynastic narrative, recording royal succession and the founding of the city Śrāvastī.
It highlights a king’s civilizing role—establishing settlements and cities—an implied aspect of rajadharma: ensuring organized habitation, protection, and prosperity through stable polity.
The key point is city-foundation (nirmitā śrāvastī). While no technical Vāstu rules are stated here, it signals the Purāṇic theme that righteous rulers establish planned urban centers—an entry-point for “Matsya Purana Vastu Shastra tips” in later architectural chapters.