寂子扑镜 (寂子撲鏡) jìzǐ pūjìng

jìzǐ pūjìng set phrase Jizi breaks a mirror
Domain: Buddhism 佛教 , Subdomain: China
Notes: A koan about monastic 寂子 Jizi, also known as 仰山慧寂 Yangshan Huiji, breaking a mirror (FGDB '寂子撲鏡')