Matsya Purana — The Syamantaka Jewel Episode and the Vrishni–Sainya Genealogies
ततः स जाम्बवन्तं तं हत्वा चक्रेण वै प्रभुः कृतकर्मा महाबाहुः सकन्यं मणिमाहरत् //
tataḥ sa jāmbavantaṃ taṃ hatvā cakreṇa vai prabhuḥ kṛtakarmā mahābāhuḥ sakanyaṃ maṇimāharat //
Then the Lord, the mighty-armed one, having accomplished his purpose, slew that Jāmbavān with the discus, and brought back the jewel—together with his daughter.
This verse does not address pralaya or cosmology; it focuses on a heroic, avatāra-style exploit—defeat of a powerful figure and recovery of a sacred jewel.
Indirectly, it models decisive action to restore what is rightfully recovered and to complete one’s appointed duty (kṛtakarmā)—a kingly ideal of protecting order and retrieving stolen or lost treasures.
No explicit Vāstu or ritual procedure appears in this verse; its significance is primarily narrative and theological, highlighting the chakra as a divine instrument and the recovery of a valued mani.