The question ends with me. Who said this?

President Truman of the United States had a sign on his office door that said "Barrels stop here". Barrels means buckets. In the old society of the United States, there was an activity of passing buckets around. If the water source was a little far away from the place where the water was used, they would pass it on individually. This was a story from the pioneering era of the West at that time. From now on, this sentence will be interpreted in English as: pass the trouble to others - "to pass the barrel", which means to pass the problem to others. President Truman put this sign on the door to say: Any problem ends with me and I will not pass it on to anyone else. So he wrote "barrels stop here." The problem ending at my door means that I will never pass the problem to others, and "never pass" is his commitment to solving the problem.