Course Description
The Mahāratnakūṭa Sūtra 大寶積經 / The Great Pinnacle of Jewels is a collection of Mahāyāna Buddhist sūtras containing 49 texts, termed "assemblies" in Chinese (會). The texts seem to have been collected over a number of centuries, and their varying subject matter suggests historical transitions between major eras of Buddhist thought. According to the Nikāyasaṅgraha (a Theravādin text), the Ratnakūṭa Sūtra was composed by the "Andhakas", meaning the Mahāsāṃghika schools of the Āndhra region.
Many, if not all, of the sutras in the Mahāratnakūṭa collection have a history of being circulated independently. Part of the collection was brought to China by Bodhiruci in the 8th century, where he translated some of the texts, and included others which had been previously translated into Chinese. This is found in Taisho volumes 11 and 12a. The Mahāratnakūṭa is the text numbered 310, and texts numbered 311 through 373 are alternate translations of some of the sutras contained in the Mahāratnakūṭa.
There is also a Tibetan version of Mahāratnakūṭa Sūtra collection, which is currently being translated into English.
Suggested Reading
https://www.notion.so/Mah-ratnak-a-S-tra-de038d8f54d7462688200a636c33f07e