Sometimes called the Khuddaka Gantha. The fifth and last division of the Sutta Piṭaka. It consists of fifteen independent treatises, some belonging to the earlier period, while others may be ascribed to the later stratum of the Pāḷi Canon. This Nikāya is composed for the most part in verse, and contains all the most important collections of Pāḷi poetry.
The fifteen books are:
According to another classification the whole of the Vinaya Piṭaka and the Abhidhamma Piṭaka and all the teachings of the Buddha, not included in the remaining four Nikāyas, are regarded as forming the Khuddakanikāya (DA.i.23; Sp.i.27).
The Dīghabhāṇakas refused to accept the authenticity of the Khuddakapāṭha, Cariyāpiṭaka, and the Apadāna, and included the other books as part of the Abhidhamma Piṭaka.
The Majjhimabhāṇakā did not accept the Khuddakapāṭha but acknowledged the rest, and included them in the Sutta Piṭaka (DA.i.15).