Tipitaka of the Theravada school.
Preserved in the Pali language
and probably closed by the time of Asoka, it is the oldest existing body of Buddhist literature.
Because this Tipitaka dates from prior to the time when
writing became common in India, it contains numerous repetitions
and mnemonic devices, further pointers to its early age.
Most of the discourses within it, whether in prose or
verse, are attributed to the Buddha himself while a lesser number are attributed to
his direct disciples. Although the Pali Tipitaka is very
large, several times longer than the Bible, it is still
much smaller than either the Chinese or the Tibetan Tipitaka.