Srimad Bhagavatam Canto 10, Chapter 41, Text 17

 SB 10.41.17

sri-bhagavan uvaca
ayasye bhavato geham
 aham arya-samanvitah
yadu-cakra-druham hatva
 vitarisye suhrt-priyam
 
Translation: 
 
The Supreme Lord said: I will come to Your house with My elder brother, but first I must satisfy My friends and well-wishers by killing the enemy of the Yadu clan.
 
Purport: 
 
Akrura glorified Krsna in text 16 as yaduttama, “the best of the Yadus.” Sri Krsna here confirms this by saying, in effect, “Since I am the best of the Yadus, I must kill the enemy of the Yadus, Kamsa, and then I will come to your house.”
Srimad Bhagavatam Canto 10, Chapter 41, Text 16
Srimad Bhagavatam Canto 10, Chapter 41, Text 18