You will need to see the quatar employment regulations. The summary is provided at
Labour Laws in Qatar - Employment Requlations in Doha
The labour relations are governed by the contract and everything must be done on the basis of the contract. As per law, end of employment terms must be very clearly stated. So you need to check out the contract. Please note that the Arabic version holds over the English version.
The rules include the following (though you need to check for details, including what to do for indiscipline)
The employer, on expiry of the service contract, will have to provide the employee with a service certificate, free of charge, indicating his date of employment, type of work he performs, and the amount of wage he was receiving. The employer should also return to the employee the documents and certificates which the employees submit to the employer.
On termination of the service of the employee, the employer is liable to bear his cost of return to his home country, or to any place agreed upon between the parties. The employer shall complete the proceedings of returning the expatriate employee within a period of not more than two weeks from expiry date of the contract.
However, if the employee joins another employee before his departure from the State, then it is the duty of the new employer to bear the travel expense of the employee.