Matsya Purana — The Syamantaka Jewel Episode and the Vrishni–Sainya Genealogies
तुष्टावैनं तदा ऋक्षः कर्मभिर्वैष्णवैः प्रभुम् ततस्तुष्टस्तु भगवान् वरेणैनमरोचयत् //
tuṣṭāvainaṃ tadā ṛkṣaḥ karmabhirvaiṣṇavaiḥ prabhum tatastuṣṭastu bhagavān vareṇainamarocayat //
Then the Bear (Ṛkṣa) praised that Lord, the supreme Master, by performing Vaiṣṇava rites and acts of devotion; and the Blessed Lord, being pleased, granted him a boon of his choosing.
This verse does not describe pralaya directly; it highlights the Purāṇic principle that devotional acts (Vaiṣṇava karmas) and praise (stuti) lead to divine favor and boon-bestowal.
It supports the Matsya Purana’s ethical-religious model where householders (and kings) should perform Vishnu-oriented rites and maintain disciplined devotional practice, since righteous ritual action and sincere praise are portrayed as effective means to obtain divine guidance and success.
The ritual takeaway is explicit: “Vaiṣṇava karmas” (Vishnu-centered rites/observances) are presented as the proper method of worship that pleases the deity and results in the granting of a boon.