What is the ruling of Islamic law on subscribing to a "savings fund" that is financed by fines, penalties, and bank interest, with 25% deducted from the basic salary and an annual interest rate reaching 17%, and the amounts disbursed at the end of service? And what is the ruling of Islamic law if subscription is requested according to the alleged Islamic system?

There is no legal impediment to deducting a portion of the salary and investing it, provided the owner's consent and approval, and that the investment adheres to Sharia (definition) guidelines. However, if the deduction is without the employee's consent or if the investment is in prohibited activities, then it is not permissible. It is a Muslim's right and duty to request that their money be invested according to the rulings of Islamic Sharia.