Revākhaṇḍa ascribed to the Vāyupurāṇa (RKV) 230.25

230.25

śakratīrthaṃ kuśāvartaṃ haṃsatīrthaṃ tathaiva ca /
ambarīṣasya tīrthaṃ ca mahākāleśvaraṃ tathā //

Śakra pilgrimage place, Kuśāvarta, and Haṃsa pilgrimage place, / the pilgrimage place of Ambarīṣa, and Mahākāleśvara;