Devibhagavatapurana 7.20.21

7.20.21

viśvāmitra uvāca -
pūrṇaḥ sa māso bhadraṃ te dīyatāṃ mama dakṣiṇā |
pūrvaṃ tasya nimittaṃ hi smaryate svavaco yadi ||

Vis’vâmitra said:-- “You promised that you would pay Daksinâ at the end of one month; and today that one month is completed; if you remember, then give me the Daksinâ.”