Mbh 12.281.7

"'Bhishma continued, "When the great Asura or Daitya was overtaken by that fever (born of Mahadeva's energy), the deities and the Rishis, filled with joy, uttered loud cheers. At the same time drums, and conchs of loud blare, and kettle drums and tabors began to beat and blow by thousands. Suddenly all the Asuras became afflicted with the loss of memory. In a trice, their powers of illusion also disappeared. The Rishis and the deities, ascertaining the foe to be thus possessed, uttered the praises of both Sakra and Isana, and began to urge the former (to make no delay in destroying Vritra). The form that Indra assumed on the eve of the encounter, while seated on his car and while his praises were being hymned by the Rishis, became such that none could look at it without awe."'"[1393]