Srimad Bhagavatam Canto 08, Chapter 05, Text 07

SB 8.5.7

sasthas ca caksusah putras
 caksuso nama vai manuh
puru-purusa-sudyumna-
 pramukhas caksusatmajah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The son of Caksu known as Caksusa was the sixth Manu. He had many sons, headed by Puru, Purusa and Sudyumna.
Srimad Bhagavatam Canto 08, Chapter 05, Text 06
Srimad Bhagavatam Canto 08, Chapter 05, Text 08