Paying like-for-like goods without adding anything extra or asking for something extra in return

This hadith explains that when exchanging goods, payment should be made with the same type of good. For example, if someone wants to buy dates, they should pay with dates instead of money. Additionally, it is forbidden to add anything extra or ask for something extra in exchange as this would be considered usury which is not allowed in Islam. Usury means taking interest on a loan and it is prohibited because it causes people to become financially burdened and can lead to poverty. Therefore, Muslims are encouraged to exchange items like-for-like without adding anything extra or asking for something extra in return.