Follow Islamic teachings; Strive for lawful earnings; Be honest & truthful; Avoid sinning & wrongdoing; Respect other people's rights & property; Abide by laws & regulations set by Allah SWT .

According to the hadith narrated by Abu Mas'ud Al-Badri, the Prophet Muhammad prohibited Muslims from earning money through certain activities. These activities include selling dogs, prostitution and soothsaying. This prohibition is based on Islamic teachings which emphasize that Muslims should not engage in any activity that is considered immoral or unethical according to Islamic law. Furthermore, it teaches us that we should strive to earn our living through lawful means and avoid any activity which may lead us astray or cause harm to others.

The hadith also serves as a reminder for us to be mindful of our actions and ensure that we are not engaging in any activity which goes against Islamic teachings. It encourages us to stay away from anything which could potentially lead us towards sinning or doing something wrong as this could have serious consequences both in this life and the hereafter. Additionally, it teaches us about the importance of being honest and truthful when dealing with others as well as avoiding any form of deception or dishonesty when conducting business transactions with people.