Matsyapurana 101.34

101.34

viprāya dadyācchaṅkhaṃ ca sa padaṃ yāti śāṃkaram
rājā bhavati kalpānte dhṛtivratamidaṃ smṛtam //

One who bathes in Panchâmṛita for a year, and then gives away a conch, Panchâmṛita and a cow to a Brâhmaṇa, goes to the realm of Śiva and becomes a king at the end of a kalpa. This is called the (18) Dhṛiti-Vrata.—33-34.