What is the name of the poem Zeng Guofan wrote about his family’s land dispute?

Zeng Guofan wrote not a poem but a "Letter to Warning Family" due to his family's land dispute. The content is: If a gentleman wants to become a great weapon, he should not do anything that will benefit him for a long time, and he should not go to places where everyone is fighting for it. Profits can only be achieved by oneself but not by oneself; planning can be done by few but not by many. Anyone who achieves great things! Focus on knowledge, supplemented by talent. Half of it is man's plan and half of it is God's will. It’s up to people to plan things, but it’s up to God to make things happen! Translation:

If you don’t do things that are profitable in the long term, because when things are prosperous, they will decline; if you don’t go to places where everyone is fighting for it, it is easy to cause trouble. Benefits must be shared rather than monopolized, and only by giving up can you gain; planning cannot be discussed because it is difficult to coordinate with everyone. Anyone who wants to achieve great things must first have profound experience and insight, and be assisted by talent; anyone who wants to achieve great things, half depends on human planning, and the other half depends on God's will and whether the opportunity will come. The so-called planning In man, everything is done in heaven.