Practice fairness in all dealings; Give charity if unable to pay back loans; Exchange goods with equal value; Do not take advantage of those who are less fortunate than you financially or otherwise .

This hadith is about the prohibition of usury, which is a form of financial transaction where one party lends money to another at an interest rate that exceeds what was originally borrowed. It also emphasizes the importance of exchanging goods with equal value. The Prophet Muhammad (peace be upon him) taught that it was wrong to take advantage of someone else's misfortune by charging them more than what they borrowed or exchanged for something else. He also taught that if someone does not have enough money to pay back a loan, then they should give charity instead as this will be more beneficial in the long run. This hadith serves as a reminder for Muslims to practice fairness in all their dealings and not take advantage of others who may be less fortunate than them financially or otherwise.