Vishnupurana 3.17.45

When the mighty Vishńu heard their request, he emitted from his body an illusory form, which he gave to the gods, and thus spake This deceptive vision shall wholly beguile the Daityas, so that, being led astray from the path of the Vedas, they may be put to death; for all gods, demons, or others, who shall be opposed to the authority of the Veda, shall perish by my might, whilst exercised for the preservation of the world. Go then, and fear not: let this delusive vision precede you; it shall this day be of great service unto you, oh gods!"

When the mighty Vishńu heard their request, he emitted from his body an illusory form, which he gave to the gods, and thus spake This deceptive vision shall wholly beguile the Daityas, so that, being led astray from the path of the Vedas, they may be put to death; for all gods, demons, or others, who shall be opposed to the authority of the Veda, shall perish by my might, whilst exercised for the preservation of the world. Go then, and fear not: let this delusive vision precede you; it shall this day be of great service unto you, oh gods!"