How can one be certain that Islamic banks—like Faisal Islamic Bank—conduct their dealings in accordance with Islamic Sharia, and what is the optimal action to take concerning inherited money deposited in a savings account, especially when there is no provider and one is unable to work due to illness?

To determine the extent to which Islamic banks adhere to Sharia (definition) principles, one can ask scholars who are familiar with the conditions of these banks in the country concerned. Among the Sharia guidelines for a bank in Mudarabah (definition) (profit-sharing partnership) are: that both the capital provider and the Mudarib (entrepreneur) should have a known percentage share of the profit, not a fixed amount; and that the capital should not be guaranteed, as the capital provider bears the loss if it occurs, while the worker (Mudarib) bears the loss of his effort. Therefore, one must examine the contract concluded with the bank and seek assistance from trustworthy scholars to determine the extent of the bank's adherence to Sharia principles.