Srimad Bhagavatam Canto 09, Chapter 24, Text 52

SB 9.24.52

devaraksitaya labdha
 nava catra gadadayah
vasudevah sutan astav
 adadhe sahadevaya
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
By the semen of Vasudeva in the womb of Devaraksita, nine sons were born, headed by Gada. Vasudeva, who was religion personified, also had a wife named Sahadeva, by whose womb he begot eight sons, headed by Sruta and Pravara.
Srimad Bhagavatam Canto 09, Chapter 24, Text 51
Srimad Bhagavatam Canto 09, Chapter 24, Text 53-55