Binance Futures
The basic principle is that there should be no deception or intend to harm others in trade and business. The condition to own a thing before selling it to others is based on this principle. But now in the modern mode of business selling without ownership an accepted norm of business and documentation leaves almost not risk of deception. Therefore it is lawful. However where there is no such documentation or other guarantee is involved and the element of deception is visible it won’t be allowed.