Whether the Qur’an bans all forms of interest, or specifically its exploitative forms, was a matter of controversy in the early decades of Islam. It still remains in doubt. What is crystal clear is that what passes as Islamic finance is anything but interest-free.
Almost all of the Islamic banks in existence, including those in Egypt, charge their borrowers what any economist would call interest; they also pay their depositors interest as a matter of course. This is not surprising, for interest continues to provide tangible benefits to both lenders and depositors………………………………………..Full Article: Source