Śrīmad-Bhāgavatam · Text 12.4.2
Who is speaking and story frame
चतुर्युगसहस्रं तु ब्रह्मणो दिनमुच्यते ।
स कल्पो यत्र मनवश्चतुर्दश विशाम्पते ॥ २ ॥
catur-yuga-sahasraṁ tu
brahmaṇo dinam ucyate
sa kalpo yatra manavaś
caturdaśa viśām-pate
One thousand cycles of four ages constitute a single day of Brahmā, known as a kalpa. In that period, O King, fourteen Manus come and go.
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.