What is the ruling on a person whose manager orders him not to attend, and if the work requires him, they will call him?

Question:
He says: I work as a teacher. I was hired at a school, but the principal told me, "Do not come to the school, for we do not need you. When we need you, we will let you know." What is the ruling?

Answer:
The ruling is that you must attend during working hours. If there is work for you, you do it; otherwise, you have prepared yourself and attended, and the principal has no authority to grant people leave according to the system. The system in the school and in other departments is that employees and teachers must attend during working hours, even if they have no work, because they have prepared themselves and attended, thereby fulfilling what is required of them. As for not attending, the principal has no authority to grant permission except to those who have valid excuses, in accordance with the system. Therefore, the principal and others must never exceed the system; he has no authority to override the system.