Mudgalapurana 6.7.19

6.7.19

adhunā vada māhātmyaṃ bhajanasya viśeṣataḥ |
tatra sthānaṃ ca mantrādividhiyuktaṃ mahāmune ||

Now tell especially of the greatness of his worship,
and the holy place there, along with the rules for mantras and rituals, O great sage.