My sponsor stop me from working and refused to...

We would like to inform you that if you are an expat  and the employer took your passport, then the employer doesn't have the right to take it. So you can claim for it, and if they refuse then you can file a complaint with the police and provide a copy of that complaint to the Ministry of Labor to prove the violation.
Note that the law allows the governmental departments that belong to the Ministry of Interior to take the passport, otherwise it is legal violation such as the private sector.
We would like to inform you that according to the Federal Labor Law, in the event of refusal to transfer and the worker's termination of work, the matter may be considered an arbitrary dismissal and the text of the article applies to it.
Article 115
Where an employment contract is for a definite term and the employer revokes it for reasons other than those specified in Article (120) he shall be required to compensate the worker for any damage the latter sustains, provided that the amount of compensation shall in no case exceed the aggregate wage due for a period of three months or the remaining period of the contract, whichever is shorter, unless otherwise stipulated in the contract. unless the reason for termination is related to what is stipulated in Article (120)

Dear, please note that the jurisdiction in submitting a complaint to the Labor Office, and as long as the Labor Office has not been able to resolve the dispute, you can go to the Federal Court to consider the matter and obtain a ruling in your favor.