Śrīmad-Bhāgavatam · Text 12.2.23
Who is speaking and story frame
यदावतीर्णो भगवान् कल्किर्धर्मपतिर्हरि: ।
कृतं भविष्यति तदा प्रजासूतिश्च सात्त्विकी ॥ २३ ॥
yadāvatīrṇo bhagavān
kalkir dharma-patir hariḥ
kṛtaṁ bhaviṣyati tadā
prajā-sūtiś ca sāttvikī
When the Supreme Lord has appeared on earth as Kalki, the maintainer of religion, Satya-yuga will begin, and human society will bring forth progeny in the mode of goodness.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.
From 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.