Manjusri in the context of Samboghakaya

Khedrup Gelek Pelzang, 1st Panchen Lama (1385–1438 CE) – better known as Khedrup Je –  was one of the main disciples of Je Tsongkhapa, whose reforms to Atiśa's Kadam tradition are considered the beginnings of the Gelug school of Tibetan Buddhism.

Khedrub Je is considered to be an emanation of Manjusri, the Buddha of Wisdom.

Samantabhadra (lit. 'Universal Worthy' or 'All Good') is a great bodhisattva in Buddhism associated with practice and meditation. Together with Shakyamuni Buddha and the bodhisattva Mañjuśrī, he forms the Shakyamuni Triad in Mahayana Buddhism. He is the patron of the Lotus Sutra and, according to the Avatamsaka Sutra, made the ten great vows which are the basis of a bodhisattva.

In Chinese Buddhism, Samantabhadra is known as Puxian and is associated with action, whereas Mañjuśrī is associated with prajñā (transcendent wisdom). As such, his name is often prefixed with the epiphet Daheng (大行; Dàhèng), meaning “He of Great Practice”. In the Huayan tradition, he is regarded together with Vairocana Buddha and the bodhisattva Mañjuśrī as one of the “Three Noble Ones of Huayan” (華嚴三聖; Huāyán Sānshèng) due to their preeminence in the Avatamsaka Sutra. In the Chinese Pure Land tradition, the Chapter of the Practices and Vows of Bodhisattva Samantabhadra from the Avatamsaka Sutra where Samantabhadra expounds on his ten vows is often regarded as one of the “Five Pure Land sutras” that are seen as foundational texts. In Japan, Samantabhadra is known as Fugen, and is often venerated in Tendai and Shingon Buddhism. In the Nyingma school of Tibetan Buddhism, Samantabhadra is also the name of the Adi-Buddha, often portrayed in indivisible union (yab-yum) with his consort, Samantabhadrī. In wrathful form he is one of the Eight Herukas of the Nyingma Mahayoga and he is known as Vajramrtra, but this Samantabhadra buddha and Samantabhadra bodhisattva are not the same.

The Āryamañjuśrī­mūlakalpa (The Noble Root Manual of the Rites of Mañjuśrī) is a Mahāyāna sūtra and a Mantrayāna ritual manual (kalpa) affiliated with the bodhisattva of wisdom, Mañjuśrī. In Tibetan Buddhism it is classified as a Kriyā-tantra. According to Sanderson (2009: 129) and the study by Matsunaga (1985), the text is datable to about 775 CE.

The Mañjuśrīmūlakalpa is often cited as the earliest example of an extant Indian Buddhist Tantra. Some scholars identify it as a compilation of a core verse text dated circa 6th century CE with later accretions and additions. The Sanskrit version, significantly longer than its corresponding Chinese and Tibetan renderings, is still extant.