What is "vimuttimagga"

__NOTOC__ The Vimuttimagga ("Path of Freedom") is a Buddhist practice manual, traditionally attributed to the Arahant Upatissa (c. 1st or 2nd century). It was translated into Chinese in the sixth century as the Jietuo dao lun 解脫道論 by Sanghapala. The original text (possibly Pali or Buddhist Hybrid Sanskrit) is no longer extant, but the work has survived in Chinese. The book was probably written in India and then later brought to Sri Lanka. According to Bhikkhu Analayo, some doctrines of the Vimuttimagga seem to be associated with those attributed to the Abhayagiri monastery by Dhammapāla.