Vimalaprabha
Vimalaprabhā is a Sanskrit word that means "The Radiance of Purity", or "Drimé Ö" (). This 11th-century Tibetan Buddhist text is a commentary to the Kālacakra Tantra. The Vimalaprabhā is attributed to Shambhala King Pundarika (Tibetan: Pad ma dkar po). It is composed in Sanskrit and consists of 12,000 lines of text. Manuscripts of the work have survived in the libraries of Tibetan monasteries and Indian libraries. The Vimalaprabhā commentary, together with the Laghutantra, form the basis of the Kālacakra practice as it is currently known and practiced in Tibetan Buddhism, as part of the Vajrayana practices. It is one of the three major commentaries on Kālacakra system, along with Hevajrapindarthatika and Laksabhidhana duddhrta laghutantra pindartha vivarana nama. History and date According to John Newman, the Vimalaprabhā mentions an event in the year "403" in Tibetan number symbols stating it to be the "year of the lord of the barbarians". This combined by the text's statement that "Muhammad is the incarnation of al-Rahman" and the teacher of the barbarian dharma (religion), states Newman, suggests that the 403 year must be in the era of Hijra, or equal 1012-1013 CE. This supports the dating of this text to about 1027 CE