Srimad Bhagavatam Canto 01, Chapter 03, Text 27

SB 1.3.27

rsayo manavo deva
manu-putra mahaujasah
kalah sarve harer eva
saprajapatayah smrtah
 
Translation  by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
All the rsis, Manus, demigods and descendants of Manu, who are especially powerful, are plenary portions or portions of the plenary portions of the Lord. This also includes the Prajapatis.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Those who are comparatively less powerful are called vibhuti, and those who are comparatively more powerful are called avesa incarnations.
 
Srimad Bhagavatam Canto 01, Chapter 03, Text 26
Srimad Bhagavatam Canto 01, Chapter 03, Text 28