孔子聞之，曰：「公索氏比及三年，必亡矣。
Kongzi said, “The house of Gongsuo will surely perish within three years.” One year later the house of Gongsuo perished.
」後一年而亡。
A disciple said, “When the house of Gongsuo lost its sacrificial beasts, you said, sir, that it would perish within three years.
弟子問曰：「昔公索氏亡牲，夫子曰，『比及三年必亡矣。
Now it has perished after one year.
』今期年而亡，夫子何以知其將亡也？
How did you know that it was going to perish?” “The word ‘sacrifice’ (ji 祭),” said Kongzi, “has the same meaning as suo 索, and suo is a way of saying ‘to exhaust’ (jin 盡).
」孔子曰：「祭之為言索也。
Thus, a filial son will exhaust his possessions in order to conduct a sacrifice to his ancestors.
索也者，盡也，乃孝子所以自盡於親也。
When they lost their beasts as the time of the sacrifice approached, this showed that their other losses were numerous.
至祭而亡其牲，則餘所亡者多矣。
吾以此知其將亡也。」
This was how I knew that the house was on the point of perishing.” Shu Xiang Foresees Cai’s Destruction by Chu