Follow Islamic law when exchanging items with others; Give something back if someone gives you a gift; Make sure all transactions are fair and just; Avoid exploitation and unfairness when exchanging items with others.

The Prophet Muhammad taught us that certain types of exchanges are forbidden in Islam. One such exchange is called Shighar, which is an exchange where two people give something to each other without any additional payment or compensation. This means that if one person gives something to another person, the other person must give something back of equal value in return. This type of exchange is not allowed according to Islamic law because it does not involve any kind of payment or compensation for the goods exchanged and thus it can lead to unfairness and exploitation. Therefore, Muslims should avoid engaging in this type of transaction as it goes against the teachings of Islam.