《明史·列传·卷一百一十五》
万历初，张居正执掌国政，不欣赏李材，李材于是告病还乡。
万历初，张居正柄国，不悦材，遂引疾去。
At the beginning of the Wanli reign, Zhang Juzheng took charge of state affairs and did not appreciate Li Cai, so Li Cai returned home on the grounds of illness.