Bhagavatapurana 10.37.17

10.37.17

udvāhaṃ vīra-kanyānāṃ vīrya-śulkādi-lakṣaṇam /
nṛgasya mokṣaṇaṃ śāpād dvārakāyāṃ jagat-pate //

17. Thereafter, O Lord of the Universe, Thy wedding the daughters of warriors, for which prowess is the only fee: the release of Nriga from sin in Dwaraka;