What is the ruling on money earned from hotel work that has been sent as a gift to relatives, donated to Islamic committees, or used to furnish a marital home, and is it obligatory to destroy these furnishings, and what is the expiation for that?

Working in a bank that deals with usury, whether primary interest or late payment interest, is usury and is not permissible, because it constitutes cooperation in sin and aggression.

As for the salaries received, they are permissible for those who were ignorant of the religious ruling, based on the Almighty's saying: ﴿So whoever receives an admonition from his Lord and desists, he may have what has passed, and his affair is to Allah﴾. However, if one was aware of the prohibition of the work, he must donate what he received in salaries to charitable projects and to assist the poor, along with sincere repentance to Allah.