Salam Aleikum. Sir, if the employee resigns before...

The probationary period is 3 months, during which the worker is not entitled to annual leave because it is a status for the worker to obtain annual leave that he has completed at least nine months with the employer, as the Kuwaiti Labor Law stipulates:

Article (32)
The probation period of the worker shall be specified in the work contract, provided that it shall not exceed 100 working days. Either party may terminate the contract during the probation period without
notice. In the event where the termination is made by the employer, he shall pay the worker’s end of service benefit for the period of work in the accordance with the provisions of this Law.
The worker shall not be on probation more than once for the same employer. The Minister shall issue a resolution to organize the conditions and regulations of work during the probation period.

Article (70)
The worker shall be entitled to a 30-day paid annual leave. However, the worker shall not be entitled to a leave for the first year of work except after at least 9 months of service for the employer. Official
holidays and sick leaves during the year shall not be counted as annual leave. The worker shall be entitled to a leave for the fractions year in proportion with the period he spent in actual service, even
the first year of service.