Matsya Purana 286.16

286.16

iti sakaladigaṅganā pradānaṃ bhavabhayasūdanakāri yaḥ karoti.
abhimataphalade sa nāgaloke vasati pitāmahavatsarāṇi triṃśat .. 286.15

“One who thus gives away these consorts of the Directions goes to the Nagaloka the satisfier of all desires, where he remains for 30 years of Brahmâ—15