Analysis of information sources in references of the Wikipedia article "वसुदेव" in Hindi language version.
4. tābhyāṁ saha sa gopatve kaśyapo bhuvi raṁsyate // tadasya kaśyapasyāṁśastejasā kaśyapopamaḥ / vasudeva iti khyāto goṣu tiṣṭhati bhūtale // girirgovardhano nāma mathurāyāstva-dūrataḥ / tatrāsau goṣu nirataḥ kaṁsasya karadāyakaḥ / HV 45.33-35.
The story goes that Krishna was a prince of royal blood, the son of Vasudeva. He lived with Nanda, who was also a king and Kshatriya by caste. Vasudeva and Nanda were brothers When Vasudeva knew that Nanda has come to Mathura to pay the taxes of King Kansa, he went to his brother Nanda. The point that the Abhira are Kshatriyas and specifically Yaduvansi. In Harivamsa Purana, it has been said that Gopas and Yadav are generic of same lineage and they are called Gope or Yadav.
वरूण के ऐसा कहने पर मेरे श्राप से पृथ्वी पर महर्षि कश्यप एक अंश से गोप तथा दूसरे अंश से गौओं व गोपों के अधिपति 'वसुदेव' नामक ग्वाले के रूप में मथुरा में जन्म ग्रहण कर गायों का पालन कर रहे हैं।