Ball comes in contact with both hands while dribbling

[bob jenkins]

Originally Posted by potato

What if the ball handler was trying to protect the ball from a reach in attempt and the defender happens to bump his off ball hand into the ball, and he continues to dribble, would you call it a double dribble or would you see it as unintentional? Since you guys usually don't call for illegal contacts on incidental contacts.

The ball handler shouldn't be doing this:

Art. 5. A player shall not use the forearm and/or hand to prevent an opponent
from attacking the ball during a dribble or when trying for goal. (from NCAA, but FED is similar)

And also would you see the dribble has ended if the dribbler the ball was accidentally caught between his hand & waist for a very brief moment, doesn't look like a hold but contact between hand/ball/waist.

If the ball comes to rest, yes -- and judging that is part of the job.