Where does the allusion "lay down your life to accompany a gentleman" come from?

[Title]: Lay down your life to accompany a gentleman

[Pinyin]:

[explanation]: give up: give up; Life; Life; Accompany: accompany. It means to accompany and follow each other at all costs.

This allusion comes from a touching story in Zuo Yang. During the Warring States Period, Zuo He met and went to the State of Chu together. On the way, they met with heavy snow. At that time, they were wearing thin clothes and didn't have enough food. Zuo gave all his clothes and food to make friends, and hid himself in an empty tree and committed suicide. Later generations called this intimate friend with profound friendship "Zuo Yang". According to this story, Ma, a famous Peking Opera performer, also adapted a new play "Yang Jiaoai", also known as "Give Your Life for All".