Śrīmad-Bhāgavatam · Text 12.4.6
Who is speaking and story frame
एष प्राकृतिको राजन् प्रलयो यत्र लीयते ।
अण्डकोषस्तु सङ्घातो विघाट उपसादिते ॥ ६ ॥
eṣa prākṛtiko rājan
pralayo yatra līyate
aṇḍa-koṣas tu saṅghāto
vighāta upasādite
O King, upon the annihilation of the material elements, the universal egg, comprising the elemental amalgamation of creation, is confronted with destruction.
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.