Alternate angle shows that, after the buzzer sounded, Devin Booker walked over to the Clippers bench to taunt/gloat. The shove by Cousins followed shortly after:

Post Game Thread Brooklyn Nets 6-7 defeat LA Clippers 7-6 final score 110-95

Cousins disagrees behind Scott Foster as he announces the challenge results

Devin Booker scores his 58th and 59th points while facing the double-team

Chris Paul hits a shot from 60 feet away to beat the buzzer!