What has the author Lingji written?

Lingji (Chinese: 靈基; Pinyin: Língjī; Wade–Giles: Ling-chi; 12–13th centuries) was a lay disciple and secretary to the eminent Chinese Song dynasty Chán (Japanese: Zen) Buddhist master Wansong Xingxiu (Jp: Banchō Kōshū; 1166-1246), abbot of Jingde Si (Jp: Seikyokuji) in Hangzhou, China. He is widely considered to be the principal author of the 13th century Chinese Buddhist compilation known as the Chanyuan Qinggui ("Pure Standards for the Buddhist Monastery").

Lingji's name is linked to the text by the presence within the Pure Standards of a colophon which says that the text was edited and compiled by him at Jingde Si in the year 1252, and a preface by the scholar Hu Zhi (Jp: Ko Shi), which says that Lingji was the principal compiler of the text, and that he worked in collaboration with the eminent Vinaya master Changjue Zhicheng (Jp: Chōketsu Shichō; 1184-1249).

The Pure Standards is a comprehensive, encyclopaedic reference text on Chán Buddhism, covering both the history and practices of the Chán tradition, and presenting a summary of its main texts and doctrines. The work contains biographies and hagiographies of all of the major Chán masters, including material attributed to eminent Song dynasty figures in the Linji (Jp: Rinzai) school, such as Dahui Zonggao (Jp: Daito Sōkō), and Wanshi Tongli (Jp: Banshi Dōryū).