Is it permissible to perform the Hajj obligation by guaranteeing investment certificates from Faisal Islamic Bank?

It is permissible to obtain funds from an Islamic bank for the purpose of Hajj or other needs, provided that the transaction is legitimate, such as a Tawarruq (monetization) or a Qard Hasan (benevolent loan). The permissibility of the transaction is not affected by it being secured by an investment deposit. Islamic banks' transactions are generally permissible. The detailed ruling on investment certificates and their profits depends on the extent to which the bank adheres to Sharia compliance in its investments.