Śrīmad-Bhāgavatam · Text 10.51.12
Who is speaking and story frame
स तावत्तस्य रुष्टस्य दृष्टिपातेन भारत ।
देहजेनाग्निना दग्धो भस्मसादभवत् क्षणात् ॥ १२ ॥
sa tāvat tasya ruṣṭasya
dṛṣṭi-pātena bhārata
deha-jenāgninā dagdho
bhasma-sād abhavat kṣaṇāt
The awakened man was angry and cast his glance at Kālayavana, whose body burst into flames. In a single moment, O King Parīkṣit, Kālayavana was burnt to ashes.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.