Is the contract of dealing with Faisal Islamic Bank of Egypt Sharia-compliant, and to what extent is the depositor responsible for bearing the consequences, even though the contract is Islamic?

It is permissible to deposit money in an Islamic bank for savings or investment if it adheres to the Sharia regulations. The accusation of usury against it is not acceptable without proof. If the bank violates the conditions and engages in impermissible transactions without the client's knowledge, the sin lies with those in charge of the bank. The resulting profits are not permissible for the depositor, and they must be spent on the general welfare of Muslims.