Is working as an accountant in a training center that deals with the banking sector considered to be a mixed (halal and haram) profession, and what is the ruling on reconciling bank accounts that contain usurious interest given the absence of a purely Islamic banking alternative?

A training center that combines training in usurious banking operations with other industrial and commercial fields is considered a mixed center. Training in usury is forbidden by Islamic law because it involves assisting in sin, in accordance with His, the Almighty’s, saying: "And do not cooperate in sin and aggression." As for training in other permissible operations, it is allowed. Your work as an accountant in this center is originally permissible regarding what is lawful among accounting tasks. However, it is not permissible to record and register usurious interests, as this involves writing down usury and bearing witness to it. You must refrain from accounting related to usury.