Caodong school
The main text associated with Hongzhi is a collection of one hundred of his kōans called the "Book of Equanimity" (). This book was compiled after his death by Wansong Xingxiu (1166–1246) at the urging of the Khitan statesman Yelü Chucai (1190–1244), and first published in 1224, with commentaries by Wansong. This book is regarded as one of the key texts of the Caodong school of Zen Buddhism. A collection of Hongzhi's philosophical texts has also been translated by Leighton.