What should one do who took a calculator and a bag without the employer's knowledge in Saudi Arabia, due to the latter not fulfilling his promise of bonuses, and then found it impossible to return them after returning to his country?

If the company owner does not fulfill his promise, and what he promised was part of the questioner's rightful wages, then the questioner is permitted to take his right from the company owner's money without his knowledge, provided he does not exceed his due. However, if the questioner has no right with the company owner, then he has wrongfully consumed his money, and he must repent and return what was wrongfully taken to its owners or seek their forgiveness. If it is impossible to return the money to its owner, then he must donate it or its equivalent on his behalf.