What is the ruling on commercial debt, which includes buying and selling goods with deferred payment, then settling part of the debt and buying more, considering the gravity of delaying debt repayment mentioned in the Prophetic traditions? Is there any advice for those involved in this system?

Religion is not limited to loans, but includes everything that occupies one's liability, such as contractual debt, consumption, and loans. The deferred price for sales falls within the definition of debt and the obligation to repay it. If it has a specific due date, payment is due upon its arrival; otherwise, fulfillment is due upon demand. There is no harm in deferred sales as long as the debtor commits to repaying his debt and leaves enough to cover it upon death. The majority of scholars believe that a deferred debt becomes due upon the death of the debtor.