Matsya Purana — Kārtavīrya Arjuna’s Solar Boon and the Genealogy from Kroṣṭu to the Yādava Lines
जगाम धनुरादाय देशमन्यं ध्वजी रथी नर्मदां नृप एकाकी केवलं वृत्तिकामतः //
jagāma dhanurādāya deśamanyaṃ dhvajī rathī narmadāṃ nṛpa ekākī kevalaṃ vṛttikāmataḥ //
Taking up his bow, the banner-bearing king, a warrior in his chariot, went alone to another region—toward the Narmadā—driven solely by the desire to secure his livelihood.
This verse does not address pralaya or cosmology; it is a narrative detail about a king’s solitary journey toward the Narmadā for the sake of sustenance.
It highlights vṛtti (right means of maintenance): even a ruler may undertake hardship personally, acting with self-reliance and purpose, suggesting disciplined pursuit of legitimate sustenance rather than indulgence.
No explicit vāstu, temple-building, or ritual procedure is stated; the only locational marker is the Narmadā, which can serve as a sacred-geographical setting in broader Purāṇic context.