Zen scriptures

Though Zen is said to be based on a "special transmission outside scriptures" which "did not stand upon words", the Zen-tradition has a rich doctrinal and textual background. It has been influenced by sutras such as the Lankavatara Sutra, the Vimalakirti Sutra, the Avatamsaka Sutra, and the Lotus Sutra.

Subsequently, the Zen tradition produced a rich corpus of written literature which has become a part of its practice and teaching, including the Platform Sutra, lineage charts, collected sayings of Zen-masters, and the koan-literature.