Hello i just want to ask..my manager are forcing...

We would like to inform you that this is legal violation for the law and contract, as the contract is the only reference for that and the partied shall comply it as below articles state:
Article 36
An employment contract shall particularly specify the date of its conclusion, the date on which work is to begin, the type and place of the work, the duration of the contract, (if definite) and the amount of the wage.
So you can leave the work as below:
Article (121):
A worker may leave work without notice in one of the following cases:
1- If the employer violates his obligations before the worker in the articles stipulated in the contract or the law.
2- If the employer or his legal representative signs an assault on the worker.