Is “He revealed his benevolence by opening one side of the net.” true?
attested in history
The Records of the Grand Historian (Shiji) records that Tang once saw a hunter setting nets on all four sides. He removed three sides and prayed, 'Those who want to go left, go left; those who want to go right, go right.' The feudal lords heard of this and praised his virtue.
Cheng Tang
In official history, he is the founding monarch of the Shang dynasty, a benevolent ruler who showed mercy by opening one side of the net; in novels, he is revered as an ancient sage and virtuous king.