One of the most influential Pāli texts, this compendium of Buddhist doctrine and metaphysics is the most important book written by Buddhaghosa.
It provides a systematic exposition of Buddhist teaching and is also a detailed manual for meditation. (5th century C.E.)
ed. Mrs C.A.F. Rhys Davids,
2 volumes, 1920, 1921, reprinted as one vol 1975
Translation: The Path of Purity.