Srimad Bhagavatam Canto 09, Chapter 02, Text 16

SB 9.2.16

karusan manavad asan
 karusah ksatra-jatayah
uttara-patha-goptaro
 brahmanya dharma-vatsalah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
From Karusa, another son of Manu, came the Karusa dynasty, a family of ksatriyas. The Karusa ksatriyas were the kings of the northern direction. They were celebrated protectors of brahminical culture and were all firmly religious.
Srimad Bhagavatam Canto 09, Chapter 02, Text 15
Srimad Bhagavatam Canto 09, Chapter 02, Text 17