Spend wisely in the cause of Allah

This hadith speaks about how the properties that were given to Prophet Muhammad ﷺ as Fai Booty were not gained by Muslims with their horses and camels. Instead, these properties belonged especially to Allah's Messenger ﷺ who used them to provide for his family their yearly expenditure and spend what remained thereof on arms and horses to be used in Allah's Cause. This teaches us that we should use our resources wisely, providing for our families first before spending it on other causes. We should also strive towards spending in the cause of Allah, whether it is through donating money or helping others in need.