Is an employee's selling half his share of frozen chickens for 100 pounds per chicken at a higher price (105 pounds), and keeping the price difference for himself, knowing that the commodity is available and not scarce, considered a usurious or forbidden transaction? And does the ruling differ if he bought them with his own money and then resold them to the merchant?

The employee is a trustee and an agent for their employer, and it is not permissible for them to violate its regulations, or to take any money in excess of their salary, or to accept a gift because of their job, except with its permission. Regarding the aforementioned transaction:

- It is not permissible for the employee to take the price difference for themselves, because they are an agent, and the increase belongs to the principal. And if the buyer gives something as a gift to the agent, it is the right of the principal, because it is an increase in price. - It is not permissible for the employee to buy with their private money to sell to the merchant, except with the permission of their employer. - Public interest must be observed, and people must not be harmed, especially concerning subsidized goods. Therefore, it is not permissible to buy them for trade and raise their price. - If the commodity is available and any individual can buy it, then what the questioner mentioned about buying it at a higher price and selling it for profit is not valid, because the merchant would have done that themselves.