Matsyapurana 75.12

75.12

yaṃ yaṃ prārthayate kāmaṃ taṃ tamāpnoti puṣkalam
niṣkāmaḥ kurute yastu sa paraṃ brahma gacchati //

One who keeps up the Viśoka Saptamî ordinance, according to the rites mentioned above, without giving way to miserliness, attains bliss, and never gets any sorrow for a period of ten padmas, and is also free from disease. He also attains his wishes, and if he observes it without any desires, he becomes unified with Brahmâ.—10-12.