Śrīmad-Bhāgavatam · Text 1.13.57
Who is speaking and story frame
स वा अद्यतनाद् राजन् परत: पञ्चमेऽहनि ।
कलेवरं हास्यति स्वं तच्च भस्मीभविष्यति ॥ ५७ ॥
sa vā adyatanād rājan
parataḥ pañcame ’hani
kalevaraṁ hāsyati svaṁ
tac ca bhasmī-bhaviṣyati
O King, he will quit his body, most probably on the fifth day from today. And his body will turn to ashes.
Read Śrīla Prabhupāda's purport on Vedabase.io