The Mahāparinibbāṇa Sutta is Sutta 16 in the Digha Nikaya, a scripture belonging the Sutta Pitaka of Theravada Buddhism. It concerns the end of Gautama Buddha's life - his parinibbana - and is the longest sutta of the Pāli Canon. Because of its attention to detail, it has been resorted to as the principal source of reference in most standard accounts of the Buddha's death.[full citation needed]
The sutta begins a few days before the rainy retreat when Vassakara, the minister, visited the Buddha in Rajgir on the initiative of Ajatashatru, a king of the Haryanka dynasty of Magadha. The narrative continues beyond the three months of the rainy retreat and records the passing away of the Buddha, the cremation and the division of relics finally ending with the erection of eight cetiyas or monuments enshrining the relics of the Buddha. This shows the Indian origin of Buddhist funeral customs.
There are of course numerous versions of the Mahāparinibbāṇa Sutta. Among them, the Pali version is of an early date in respect of language and contents. The Mahāparinibbāṇa Sutta is of utmost historical and cultural value and therefore it has become a sourcebook for students of Buddhism, Buddha biography and history of Buddhist thought and literature. Other versions of the text exist in Sanskrit, Tibetan and Chinese.
On the basis of philological evidence, Indologist and Pali expert Oskar von Hinüber says that some of the Pali suttas have retained very archaic place-names, syntax, and historical data from close to the Buddha's lifetime, including Mahāparinibbāṇa Sutta. Hinüber proposes a composition date of no later than 350-320 BCE for this text, which would allow for a "true historical memory" of the events approximately 60 years prior if the Short Chronology for the Buddha's lifetime is accepted (but also reminds that such a text was originally intended more as hagiography than as an exact historical record of events).