What is the ruling on purchasing from a company that offers customers the option of depositing a monthly sum of money with it, with the price of furniture being set at the cash purchase price upon the wedding date, and the deposited amounts being deducted and the remainder being paid in installments without any increase? Is it permissible to open such an account?

Saving money with the company to obtain the price of furniture is permissible if it is merely a deposit. However, if it is a loan that the company guarantees and disposes of, and it is stipulated as a condition for selling furniture in installments, then it is not permissible. This is because it is a loan that draws a benefit for the lender, and it leads to the issue of "lend me, and I will lend you," where the company sells the furniture on credit in exchange for its previous loan. This becomes evident in selling it at a cash price, and therefore, it is not permissible to open an account in this manner. As for purchasing furniture in installments, there is no harm in it if the aforementioned prohibited condition is not present.