निशम्य तद्वचो विप्रो विमनाः पर्यतप्यत ।
अहो अधर्मः सुमहान् अद्य मे समुपस्थितः ॥ ३८ ॥
nisamya-hearing; tat-vacah-her words; viprah-the brahmana; vimanah-aggrieved; paryatapyata-lamented; aho-alas; adharmah-impiety; su-mahan-very great; adya-today; me-upon me; samupasthitah-has come.
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."
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.