Can i check my sallery contract

His work visa is limited to the employment contract and its validity, and therefore the original and according to the Labor Law, to grant a copy of the employment contract in accordance with the provisions of Article (35), taking into account what is stipulated in Article (2)
Article (35):
Subject to the provisions of Article 2, an employment contract shall be written in duplicate, with one copy to be delivered to the worker and the other to the employer. In the absence of written contract, adequate proof of its terms may be established by all admissible means of evidence.
If the employer refused, then you can go to the labor office and file a complaint to force the employer to grant you a copy of the contract.