Naradapurana 1.124.9

Nāradapurāṇa 1.124.9

atha jyeṣṭasya pūrṇāyāṃ vaṭasāvitrikaṃ vratam /
sopavāsā vaṭaṃ siṃcetsalilairamṛtopamaiḥ //