What is the ruling on money earned from working in usurious banks, knowing that a portion of it was a training bonus received before realizing its unlawfulness, and the other portion was taken after working in a department that studies the financial status of companies? Is the current work in the company's client risk management department considered unlawful, especially given the presence of debts that were restructured with interest before my arrival at the company?

The greatest of sins is abandoning prayer, and it is obligatory to make up for missed prayers. As for money earned from an unlawful profession, if it was acquired before knowing its prohibition, then it is permissible to benefit from it. However, if it was acquired afterward, then it is obligatory to dispose of it and donate it for the benefit of Muslims. If lawful and unlawful money have mixed and the amount of the unlawful is unknown, then estimation and investigation are required until one is certain that what they possess is lawful. Working in companies that adhere to Sharia guidelines is permissible, and officials should be advised when Sharia violations occur.