The Concise Oxford Dictionary of World Religions (2528 page)

period, new texts were added to the canon, both Mah
y
na s
tras and
stra
material, written by influential thinkers such as
N
g
rjuna
. At a later date still,
Tantric
material was introduced. This explains why the old threefold division is obscured in the Chinese and Tibetan tripi
akas (the Tib. tripi
aka is divided between
bka-’gyur
, containing works attributed to the Buddha himself, amounting to more than 100 vols., and
bstan-’gyur
, 220 vols. of mainly commentaries). See also
KOREAN TRIPI
AKA
.
Buddhaghosa
records the early fivefold division of the Sutta pi
aka into
D
gha Nik
ya
,
Majjhima Nik
ya