Śrīmad-Bhāgavatam · Text 1.18.37
Who is speaking and story frame
इति लङ्घितमर्यादं तक्षक: सप्तमेऽहनि ।
दङ्क्ष्यति स्म कुलाङ्गारं चोदितो मे ततद्रुहम् ॥ ३७ ॥
iti laṅghita-maryādaṁ
takṣakaḥ saptame ’hani
daṅkṣyati sma kulāṅgāraṁ
codito me tata-druham
The brāhmaṇa’s son cursed the King thus: On the seventh day from today a snake-bird will bite the most wretched one of that dynasty [Mahārāja Parīkṣit] because of his having broken the laws of etiquette by insulting my father.
Read Śrīla Prabhupāda's purport on Vedabase.io