Central banks unjustly take responsibility for setting the price of money. This usurps one of Allah's roles and giving it to human beings. The Messenger of Allah (ﷺ) said: Allah is the one Who fixes prices, Who withholds, gives lavishly and provides, and I hope that when I meet Allah, none of you will have any claim on me for an injustice regarding blood or property. sunnah.com/abudawud:3451