Skandapurana 5.262.8

5.262.8

ayaṃ hi nirmalo yogo nirguṇaḥ sa udāhṛtaḥ ..
tadviṣṇoḥ karma janitaṃ śubhatva pratipādanam .. 8 ..

For this is pure yoga; it is declared to be devoid of gunas; / actions born of that Viṣṇu demonstrate auspiciousness. (8)