Follow rules set by the Prophet Muhammad to ensure fairness and justice between parties involved in any transaction.

This hadith is about the various types of transactions that are forbidden or permitted in Islam. The Prophet Muhammad (PBUH) forbade four types of transactions which are Muhaqalah (selling goods on credit with a deferred payment), Muzabanah (selling goods on credit with an immediate payment), Mukhabarah (renting out land or other property for a fixed amount of produce) and Mu'awanah (leasing out land or other property for a fixed amount). He also prohibited Thunya which is selling something without specifying the price but gave license to 'araya which is renting out land or other property for a fixed rent payable in money. These rules were set by the Prophet Muhammad to ensure fairness and justice between parties involved in any transaction.