Matsyapurana 101.58

101.58

ekādaśyāṃ ca naktāśī yaścakraṃ vinivedayet
samānte vaiṣṇavaṃ haimaṃ sa viṣṇoḥ padamāpnuyāt
etat kṛṣṇavrataṃ nāma kalpānte rājyabhāgbhavet //

The devotee who, on the 11th day of each month, has his meal in the night and then gives to the Vaiṣṇava a quoit made of gold, goes and resides in the realm of Viṣṇu for one kalpa, at the end of which he is born a great king. This is (37) *Kṛiṣṇa-Vrata*.—58.