Śrīmad-Bhāgavatam · Text 11.3.12
Who is speaking and story frame
ततो विराजमुत्सृज्य वैराज: पुरुषो नृप ।
अव्यक्तं विशते सूक्ष्मं निरिन्धन इवानल: ॥ १२ ॥
tato virājam utsṛjya
vairājaḥ puruṣo nṛpa
avyaktaṁ viśate sūkṣmaṁ
nirindhana ivānalaḥ
Then Vairāja Brahmā, the soul of the universal form, gives up his universal body, O King, and enters into the subtle unmanifest nature, like a fire that has run out of fuel.
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.