Is it permissible for an employee to complete a voluntary training course in another building of the ministry instead of remaining in his department, and is he required to donate the value of the hours he spent in training?

The employee is a private hireling (ajir khass), and it is not permissible for him to occupy his working hours with anything other than the work he is assigned, unless the employer explicitly or customarily permits him. If there is no explicit or customary permission to attend a training course during working hours, then it is not permissible to attend it. In such a case, a portion of the salary equivalent to the time spent attending the course must be returned, or given as charity if returning it is not possible.