What is the legal ruling on borrowing a sum of money from an institution without interest, when upon receiving the amount from the bank affiliated with the institution, the employee states that there is a commission for withdrawal?

It is necessary to ask the bank about the nature of the commission charged. If it is for a money transfer service and is a small amount unrelated to the amount withdrawn, then there is no harm. However, if the commission is tied to the amount withdrawn, then there is concern that this might be a circumvention of the prohibited usurious interest, and borrowing with interest is not permissible.