Article 27
Closely guarded player
A closely guarded player must pass, shoot or dribble the ball within 5 seconds.
A1 is closely guarded for 4 seconds by B1. Then A1 fumbles the ball and catches it again.
Interpretation
This is a 5-second violation by A1, as A1 within 5 seconds did not pass, shoot or dribble the ball. The fumbling the ball at the start or at the end of the dribble is not a dribble.