In futsal on a goal clearance the ball has to leave the penalty area in order for it to be in play. So if a goalkeeper saves the ball, establishing possession and trips over his own feet and the ball goes into net crossing the goal line, what is the correct restart?

Answer (February 22, 2013):
You are confusing two totally different parts of the Futsal Laws.

The fact that on a goal clearance (same as goal kick in outdoor) the ball is supposed to leave the penalty area before it is in play has nothing to do with a dynamic play play situation where a clumsy goalkeeper does an “opps” and scores on himself.

The answer to your question is a kick-off.