No call or not

[ugr001]

Situation: The score is tied and A1 takes a jump shot before times expired on the clock. There is contact by B1 clearly after the ball has left A1's hand. Do you call the foul or do you allow the game to go into overtime.

I would call a foul only if the contact was made prior to the release of the ball or if I ruled the foul was intentional or flagrant, otherwise I would leave it alone. Can anyone give me some insight into the situation and how they would handle it?