Final answer:
Islamic Sharia law prohibits the payment of interest, seeing it as a form of usury. This prohibits earning profits through interest on loans, in contrast to many Western financial practices.
Step-by-step explanation:
The Islamic law, known as Sharia, prohibits the payment of interest, which is considered a form of usury. Under Sharia law, financial transactions should be based on principles of risk sharing and fairness, which makes earning profits on loans through interest payments unacceptable. This is in contrast to the common practice in other financial systems where interest on credit cards and loans is standard procedure for compensating the lender for risk and the provision of capital.