Complex sentence: Debt certificates can be only bought before the finance occurs and then held to maturity from an Islamic perspective, which is critical on debt trading at market value regarding any difference to be like the prohibited Riba (interest on money).
Split into simpler sentences: Debt certificates can be only bought before the finance occurs and then held to maturity from an Islamic perspective. This is critical on debt trading at market value regarding any difference to be like the prohibited Riba (interest on money).