The Blue Cliff Record (Chinese: Bìyán Lù; Japanese: Hekiganroku) is a collection of 100 kōans compiled in 1125 by Yuanwu Keqin ( 1063-1135).
The Gateless Gate (Chinese: Wumenguan; Japanese: Mumonkan) is a collection of 48 kōans and commentaries published in 1228 by Chinese monk Wumen () (1183-1260).