What is the ruling on working in the Islamic finance department of a usurious bank, where the employee receives their salary and benefits from the bank, and is their salary considered permissible or impermissible?

It is permissible to work in a bank branch that is separate from a usurious bank and operates according to legitimate (Shariah-compliant) methods, and the salary earned from it is lawful. Masturbation and smoking are forbidden due to the reprehensibility of these acts and their harm.