What is the ruling on working for a company that finances the purchase of shares through banks with annual interest, and on signing these contracts? What is the ruling on the salary earned from it? What should one do if it is imperative to leave this job, and how can one manage living expenses during the period of searching for an alternative job?

The ruling depends on the type of banking transaction. If the bank lends money with an increase, it is usury (riba), and it is impermissible to sign or cooperate in it. However, if the bank buys shares and then sells them at a profit (murabaha), this is permissible, provided that the shares themselves are permissible. If the transaction is of the latter type, then there is no objection to signing the contract and pursuing it. The reality of the transaction must be considered: if it is permissible, then there is no objection to signing and facilitating it; if it is forbidden, then it is not allowed. If the work is limited to impermissible transactions, it is not permissible to remain in it, unless there is an urgent need and no other means of livelihood, in which case it is permissible to remain only to the extent of the need, while searching for permissible work.