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Year 18 after the Awakening
The Buddha at 52
This year the Buddha is fifty-two (reckoned from an awakening at thirty-five). According to the given in the later commentaries, the Buddha again keeps the on Mount Cāliya, while the Chinese Sengqieluocha suoji jing records it at Rājagaha; no source records what happened during the retreat. Neither the canonical texts nor the later commentaries place any event explicitly in this year.
The Rains Retreat
The rains retreat is kept on Mount Cāliya; the table of rains retreats in the later commentaries writes “also on Mount Cāliya”, meaning the same place as in Year 13. The Chinese Sengqieluocha suoji jing has Luoyue city (that is, Rājagaha), and another commentary on the Vinaya of the also says these years were all spent at Rājagaha.