Is it permissible to act as guarantor for a person taking a loan from the bank?

Does paying more than the amount required for zakaah mean that one is allowed to take interest?

How could the Islamic states allow the development of riba-based banks?

Ruling on selling silver riyals for paper riyals at different rates

Prohibition of selling bills of exchange to the bank

Using credit cards in cases of necessity

It is not permissible to impose a penalty for delay in praying off a debt

Bank’s interest is called riba (usury) in sharee’ah

Should he go for an interest-based mortgage if that is cheaper than renting?

Transferring money from one currency to another