What is the ruling on working for a company in which two usurious banks contribute to its capital, and which deals with interest in the sale of lands, knowing that the nature of the work is administrative clerical? What is the ruling on the money saved from this salary? And is earning from disliked work a reason for entering Hellfire?

Working for those whose wealth is mixed [with lawful and unlawful elements] is disliked, unless the work itself is prohibited. Selling by installments is permissible under two conditions: that the contract is free of penalties for late payment, and that the installments are directly from the owning company without the mediation of an usurious bank. If the company sells permissible goods, then your work and salary are permissible, but it is better to seek a pure livelihood. If the company sells prohibited goods (such as charging a penalty for late payment or using an usurious bank as an intermediary), and your work involves aiding in this prohibited transaction, then it is prohibited, and so is the salary. As for what was taken before knowing of the prohibition, it is permissible. But what is taken after knowing about it must be given in charity, and you must leave the job. If your work combines both permissible and prohibited elements, estimate the proportion of the prohibited and dispose of the equivalent amount from your salary. If your work does not involve aiding in the prohibited act, then there is no blame upon you.