Is this traveling?

[Nevadaref]

Originally Posted by ctpfive

A1 is dribbling hard down court when he leaves his feet and passes the ball. However, his teammate did not see the ball coming. A1, realizing that the defense was going to get to the ball before his teammate does,catches up to the ball and taps it to a different teammate.

Originally Posted by SamIAm

Before passing the ball or as part of passing the ball, did A1 end their dribble? If so, double dribble , if not, no violation.

Sam has the right idea.
You need to tell us if A1 ended his dribble when he left his feet and attempted to pass the ball. If not, then this action is legal.
Also, please tell us if the pass bounced on the floor prior to A1 getting to it.
If A1 did end the dribble, you could call a double dribble violation (listed as illegal dribble in 9-5) if the pass struck the floor since it meets the definition of a dribble, or a traveling violation would also be correct due to 4-44-4b "Neither foot may be lifted before the ball is released, to start a dribble."
If the pass didn't strike the floor, then it is an illegal dribble per 4.15.4 Sit D&E in the Case Book.

But I can't tell you for sure without more information.