Is it permissible for the administration to deduct a portion of the salary of employees working under the productivity system, if they are late or leave early during the training course period in which no production occurs?

The contract between the company and the workers is a ju'alah (commission/reward-based) contract. The salary increases with increased production and decreases with reduced production. A number of scholars have affirmed the validity of this. Sheikh Al-Ruhaibani said: "If he said: 'Draw water for me from this well, and for every bucket, you get a date,' or he said: 'Whoever returns a slave of mine, for every slave, he gets a dirham,' or he said: 'Shoot this arrow, and if you hit the target, you get a dirham'; it is valid and binding, because it is a ju'alah, as it involves spending money for an action in which there is a legitimate interest."