What is the ruling of Sharia on my refusal to pay a sum of money as a penalty clause for not attending the playtime designated for employees, given that this rule was put in place by one of the managers as a personal initiative and is not officially from the company, taking into account that non-payment will lead to embarrassing the manager and making the employees who paid feel that the rule is not being applied to everyone? And what is the suggested Sharia-compliant way to motivate employees to attend amicably?

The manager is not permitted to impose a financial fine on those who are late for playing, because permissible play (that which is free from forbidden acts and neglecting duties) does not incur a financial penalty for its abandonment. Otherwise, this would be a form of consuming people's wealth unjustly. Paying these sums does not make them permissible; rather, it is a type of usurpation (usurpation by shyness). The contentment of the soul is a condition for the permissibility of a Muslim's wealth, and intending good does not justify a forbidden act. Employees can be motivated to attend by the presence of a religious or worldly benefit or permissible incentives, if there is an interest for the work or for the employees.