Srimad Bhagavatam Canto 08, Chapter 14, Text 03

SB 8.14.3

yajñadayo yah kathitah
 paurusyas tanavo nrpa
manv-adayo jagad-yatram
 nayanty abhih pracoditah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
O King, I have already described to you various incarnations of the Lord, such as Yajña. The Manus and others are chosen by these incarnations, under whose direction they conduct the universal affairs.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The Manus execute the orders of the Supreme Personality of Godhead in His various incarnations.
Srimad Bhagavatam Canto 08, Chapter 14, Text 02
Srimad Bhagavatam Canto 08, Chapter 14, Text 04