Srimad Bhagavatam Canto 06, Chapter 18, Text 38

SB 6.18.38

nisamya tad-vaco vipro
 vimanah paryatapyata
aho adharmah sumahan
 adya me samupasthitah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Upon hearing Diti’s request, Kasyapa Muni was very much aggrieved. “Alas,” he lamented, “now I face the danger of the impious act of killing Indra.”
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Although Kasyapa Muni was eager to fulfill the desire of his wife Diti, when he heard that she wanted a son to kill Indra his jubilation was immediately reduced to nothing because he was averse to the idea.
Srimad Bhagavatam Canto 06, Chapter 18, Text 37
Srimad Bhagavatam Canto 06, Chapter 18, Text 39