Actually that’s not how banking works.
A bank doesn’t need any money to make a loan.
The Central Banks can create money to buy government bonds, but that’s not how the majority of money is created.
The majority of money in supply is created by commercial banks who create money by making loan.
They DO create credit.
When you get a loan they don’t transfer reserves to you, they merely add credit to your account from nowhere. They record this loan as a liability for you and an asset for them.