What is the ruling on disposing of six months' salary from an employment contract in which only three months were worked, and is it permissible to give it to any entity or person with the intention of getting rid of ill-gotten money, or must it be deposited into an absolution account to clear one's liability?

You must return the money you received by mistake to the entity responsible for salary disbursement, as the Prophet, peace and blessings be upon him, said: "The hand is responsible for what it takes until it returns it." It is not permissible for you to dispose of it or give it in charity unless the responsible entity absolves you of it and grants it to you.