:Dhatukaya

Dhatukaya ({{langx|sa|धातुकाय}}, IAST: Dhātukāya) or Dhatukaya-sastra ({{lang|sa|धातुकाय शास्त्र}}) is one of the seven Sarvastivada Abhidharma Buddhist scriptures.

Dhatukaya means "group of elements". It was written by Purna (according to Sanskrit and Tibetan sources), or Vasumitra (according to Chinese sources; five people named Vasumitra were known to the Chinese sources, but it is not clear which one of these authored Dhatukaya).{{cite book |author=Karl H. Potter |title=Abhidharma Buddhism to 150 A.D. |url=https://books.google.com/books?id=pH8ZCCIZ8McC&pg=PA345 |year=1996 |publisher=Motilal Banarsidass |isbn=978-81-208-0895-9 |page=345 }} It was translated into Chinese translated by Xuanzang: T26, No. 1540, 阿毘達磨界身足論, 尊者世友造, 三藏法師玄奘奉　詔譯, in a short 3 fascicles.

This comparatively short text bears similarities with the Pāli Sthaviravada text, the Dhatu-katha, in style and format, though it uses a different matrika. It also bears a close connection with the Prakaranapada, through several items common to both. In its sevenfold division of dharmas in particular, it does provide, a closer look at the various divisions of dharmas, in particular citta and caitasika, with its conjoined and non-conjoined aspects. As it is not mentioned in the Mahavibhasa, this also suggests it is either a later text, or originally a fragment removed from an earlier text.Venerable Yinshun: Study of the Abhidharma, Texts and Commentators of the Sarvastivada, (說一切有部為主的論書與論師之研究), Zhengwen Publishing, 1968. pg. 162