I want to borrow some money without permission
Why would you steal money?
I'll be able to pay my debt, so why should I bother to ask for permission?
Borrowing money without permission is no different than stealing, and if you're caught you will break the trust of the person you stole from and you may go to jail. If you really need to borrow money, then ask a friend or family member, or try to take out a loan.
I need to borrow money now!
I can understand your need to get money immediately, even if you expect to be able to pay it back later, but taking it without permission is still theft. Whoever you were planning on borrowing from should be willing to lend to you, given the circumstances, but you have to ask them first.