What do you have in this situation?

[curtstrouth]

Player A1 is dribbling the ball and attempts to pass to A2. In the process of the pass the ball slips through both hands, returns the floor and A1 is the first to recover it. Is this a double dribble or a muff? I have heard debates both ways but my interpretation of the rule is that once you initiate a dribble and two hands touch the ball and the ball returns to the floor it is a double dribble correct? Looking for clarification. THANKS!