Mudgalapurana 6.35.25

6.35.25

tadā devāḥ samarthāśca prajaghnurdaityanāyakān |
daityānāṃ chidrakaṃ sarvaṃ darśayāmi hṛdi sthitaḥ ||

then the gods became powerful and struck down the leaders of the Daityas; / residing in their heart, I reveal every weakness of the Daityas.