Tomb-Sweeping Day, also known as the Cold Food Festival, is from which ancient story?

During the Spring and Autumn Period, Zhong Er, the son of the Jin Dynasty, was framed and fled, so he was too hungry to walk. When everyone was at a loss, a man went to a deserted place, cut off the meat on his thigh and made broth for Zhong Er. This man is meson push. After returning to China, Zhong Er became the overlord of the generation, namely Jin Wengong. Then he rewarded everyone except meson push. Meson pushed his teeth to win merits and invited him to live in seclusion in Mianshan, Jiexiu. Jin Wengong Zhong Er burned a mountain to force him to come out, but later he found the mother and son hiding and burning it. In order to mourn him, Jin Wengong ordered that fire and cold food should be banned on the anniversary of his death (after the winter of November 150), thus forming a cold food festival.