Abhayākaragupta (Wylie: 'jigs-med 'byung-gnas sbas-pa) was a Buddhist monk, scholar and tantric master (vajracarya) and the abbot of Vikramasila monastery in modern-day, Bihar in India.
He is credited with many miracles including feeding the starving in the city of Sukhavati from his mendicant bowl which was replenished from heaven, and bringing a dead child to life in the great cemetery of Himavana.
Although as such it is not in the narrowest sense a work of the Madhyamaka, it bears testimony to the efforts made by the later Madhyamikas systematically to elaborate a synthesis of the entire Mahayanist tradition.
[13]The Munimatalamkara survives in Tibetan, and it was widely studied in Tibet until the 14th century when it was displaced by native treatises on similar subjects.
[16][17] It is probably the first generic work of its kind which is not tied to an individual tantric tradition, but was meant to be used with all tantras and mandalas.
[18] In the beginning of this work, Abhaya summarizes his intent for composing it thus: The mandala and other rituals taught by the teacher have been divided into two classes (yogatantra and yoginitantra).
Moreover, the ritual treatises compiled by (other) preceptors (acarya) lack completeness, thematic core, lucid expression and sometimes authenticity and consistency.
[21] Abhayakaragupta built upon the work of earlier authorities including Nagarjuna, Bhāviveka and Vasubandhu who also pointed out the contradictory statements within the texts of other schools.
Abhayakaragupta's interpretation of Buddha-nature had an impact on later Indian Buddhist thinkers including Daśabalaśrīmitra, Ratnarakṣita and Jayānanda.
[21] Abhayākaragupta's school of Buddhism flourished in India until the invasions of the Turks in the 13th century killed or scattered them; but his teachings were continued and revered in Tibet.