What is the ruling on the system of collecting money from employees to buy food and drink, and what is the ruling on discriminating in food quality between officials and regular employees, even though the provisions are the same?

It is permissible, according to Islamic law, for a group to share their expenses. This is supported by the Almighty's saying: "So send forth one of you with these silver coins of yours to the city, and let him see which of its food is purest and bring you therefrom a provision." This verse also implies the permissibility of partnership, agency, and companions eating together and mixing their food, even if some of them eat more than others. Imam Al-Bukhari titled a chapter in his Sahih: "Chapter on Partnership in Food, Nahd (communal contribution), and Goods," and mentioned hadiths that confirm this, such as gathering the provisions of an army and dividing them, gathering the surplus provisions of people, slaughtering a camel and dividing it, and the Ash'ariyyun gathering their food and dividing it equally. Nahd is the act of a group contributing their expenses according to the number of companions, or generally mixing provisions during travel. The principle is that partners should be equal in the purchased food, and allocating some partners food that is better than the amount contributed by the partnership depends on the permission of the rest, otherwise, it would be consuming wealth unjustly.