What is the ruling on the proposal of receiving a house from a bank after purchasing it from a partnership, and paying its price to the bank in installments, given the absence of an Islamic bank in Libya?

It is not permissible for the bank to pay the price of the house to the company and then collect it from the buyer with an increment; this is precisely usury (riba). Rather, it is permissible for the bank to genuinely purchase the house from the company and then sell it to the buyer for a profit they both agree upon, whether the price is paid in advance, deferred, or in installments.