Matsya Purana — Ila–Sudyumna Episode and the Expansion of the Ikṣvāku
तस्य पुत्रो हरिश्चन्द्रो हरिश्चन्द्राच्च रोहितः रोहिताच्च वृको जातो वृकाद्बाहुरजायत //
tasya putro hariścandro hariścandrācca rohitaḥ rohitācca vṛko jāto vṛkādbāhurajāyata //
From him was born Hariścandra; from Hariścandra came Rohita; from Rohita was born Vṛka; and from Vṛka was born Bāhu.
This verse does not discuss Pralaya; it preserves dynastic continuity by listing successive births in a royal lineage, a common Purāṇic method of structuring sacred history.
Indirectly, it emphasizes hereditary succession and legitimacy in kingship—key to Rajadharma—by showing an orderly transmission of rule through recognized descendants.
No Vāstu or ritual procedure is stated in this verse; its focus is strictly genealogical, useful for locating later ritual and political narratives tied to these kings.