by José Ignacio Cabezón
In the first centuries after the Buddha’s death, all of the traditions associated with the monastic rules came to be codified and systematized in the into an oral – and eventually a literary – corpus of materials that came to be known as the Vinaya (Dülwa), from a verbal root meaning “to discipline.”
The Tibetan Vinaya as a corpus of literary texts takes up thirteen volumes of the 103 volumes of the Tibetan Buddhist canon (Kangyur).17 In addition to these texts, which the Tibetan tradition considers to be the Buddha’s actual words, there is a substantial Indian commentarial literature on the Vinaya found in the commentarial portion of the Tibetan canon (called the Tengyur).18
The Vinaya is one of the five major subjects of the Geluk educational curriculum, and monks who reach this point in their studies spend several years solely on these texts – memorizing, studying and debating their meaning.
Anyone who wishes to study the monastic discipline as an academic subject has to possess full ordination. Since the geshé degree requires the study of Vinaya, this means, effectively, that only fully ordained monks could become geshés.19
The Pennsylvania State University Press, 1978), 49-53, for a brief overview and a list of additional readings.
 For example, in the Degé edition.
For the Sanskrit, see http://www.google.com. An outline of the Tibetan text in English can be obtained as a downloadable PDF file by clicking on Prayers, Course Syllabus and Readings on the ACIP course website.