Fulfill your obligations

This hadith is about a letter written by Prophet Muhammad (PBUH) to 'Amr bin Hazm when he was sent to govern Najran. The letter contained instructions on fulfilling obligations, verses from the Quran, and a book of retaliation. It is important for believers to fulfill their obligations in order for society to function properly. In this case, it was important for 'Amr bin Hazm to fulfill his duties as governor of Najran with justice and fairness. Additionally, the book of retaliation mentioned in this hadith outlines how people should be punished if they commit certain crimes or offenses against others; this helps maintain law and order within society so that everyone can live peacefully without fear or harm from others. Furthermore, it teaches us that Allah is swift in reckoning; He will not forget any wrongdoings done by people and will punish them accordingly if they do not repent or make amends for their actions.