This hadith is about the Prophet Muhammad's instructions for an expedition to Banu Lahyan. He instructed that one man from every two should join the fighting force, and those who stayed behind would receive half the reward of those who went. This teaches us that it is important to share rewards equally among all members of a group, regardless of whether they are actively participating or not. It also shows us how generous and fair minded our beloved Prophet was in his dealings with others. He wanted everyone to benefit from their efforts, even if they were not directly involved in them. Furthermore, this hadith encourages us to look after our families and property while we are away on expeditions or other activities so that we can still reap some benefit even if we cannot participate directly in them ourselves.