Bhagavatapurana 9.24.52

9.24.52

devarakṣitayā labdhā nava cātra gadādayaḥ /
vasudevaḥ sutān aṣṭāv ādadhe sahadevayā //

52. & 53. Devarakshita had nine sons, Gada and others; and Vasudeva further begot eight sons on Sahadeva of whom Puruvisruta was the most important; just as god Dharma begot the eight Vasus, Vasudeva had eight sons by Devaki.