What is the ruling on collateral in dealing with financing companies, and is it a condition for the guarantor to be a government employee?

The financing company's request for a guarantor for the financing applicant does not make the transaction unlawful. The two most important conditions for Murabaha sale are: first, the bank or company must own the commodity before selling it to the customer in a Murabaha sale, because the Prophet, peace and blessings be upon him, forbade selling what one does not possess and profiting from what one has not guaranteed. The second condition is that no penalty clause should be imposed if the customer delays in paying installments, because this is usury (riba), and Islamic Sharia standards and the International Islamic Fiqh Academy have explicitly prohibited it. As for requiring guarantees that do not contradict the essence of the contract, such as mortgaging the sold item or requesting a guarantor (kafeel), there is no harm in it, because these are valid and acceptable conditions to guarantee the institution's right.