Mahāratnakūṭa Sūtra

The Mahāratnakūṭa Sūtra (Sanskrit;, Tib. dam-chos dkon-mchog-brtsegs-pa) is an ancient collection of Mahāyāna Buddhist sūtras. It is also known simply as Ratnakūṭa Sūtra (寶積經), literally the Sutra of the Heap of Jewels in Sanskrit (kūṭa means ‘accumulation’ or ‘heap’).

Overview
The Mahāratnakūṭa Sūtra contains 49 texts of varying length, which are termed "assemblies" by tradition. This collection includes the Śrīmālādevī Siṃhanāda Sūtra, the Longer Sukhāvatī-vyūha Sutra, the Akṣobhya-vyūha Sūtra, a long text called the Bodhisattvapiṭaka, and others. Part of this texts was brought to China and translated by Bodhiruci in the 8th century. Bodhiruci translated some of the texts, and included others which had been previously translated. This later Bodhiruci should not be confused with another Bodhiruci who was the translator of the commentary on Ten Stages Sutra.

The Ratnakūṭa collection totals 49 Mahāyāna sūtras, divided into 120 fascicles in the Chinese translation. Garma Chang, who is listed as General Editor of a volume of select sūtras from the Mahāratnakūṭa translated from Chinese into English, (see below, Further Reading, Garma C.C. Chang, (1983). A Treasury of Mahāyāna Sūtras: Selections from the Mahāratnakūṭa Sūtra. Title Page) summarizes the breadth and variety of texts contained in this collection:

"We have found this work to contain a broad coverage of various subjects. The topics discussed range from the monastic precepts (Vinaya) to intuitive wisdom (prajñā), from good deportment to the manifestation of the Tathāgata's light, from illusion (māyā) to ingenuity (upāya) to the nature of consciousness and the Pure Land practice. It can perhaps be called a small encyclopedia of Mahāyāna Buddhism, which should be useful to general readers as well as to scholars."

In the Taishō Tripiṭaka in volumes 11 and 12a, the Mahāratnakūṭa is the text numbered 310, and texts numbered 311 through 373 are various other translations of some of the sutras contained in the Mahāratnakūṭa.

List of sutras
The 49 sutras found in this collection are as follows:


 * 1) Trisaṁvara-nirdeśa
 * 2) Anantamukha-pariśodhana-nirdeśa
 * 3) Tathāgatācintya-guhya-nirdeśa
 * 4) Svapna-nirdeśa
 * 5) Sukhāvatī-vyūha
 * 6) Akṣobhya-tathāgatasya-vyūha
 * 7) Varma-vyūha-nirdeśa
 * 8) Dharmadhātu-prakṛty-asambheda-nirdeśa
 * 9) Daśadharmaka
 * 10) Samantamukha-parivarta
 * 11) Raśmisamantamukta-nirdeśa
 * 12) Bodhisattva-piṭaka
 * 13) Āyuṣman-nanda-garbhāvakrānti-nirdeśa
 * 14) Nanda-garbhāvakrānti-nirdeśa
 * 15) Mañjuśrī-buddhakṣetra-guṇa-vyūha
 * 16) Pitāputrasamāgamana
 * 17) Pūrṇa-paripṛcchā
 * 18) Rāṣṭrapāla-paripṛcchā
 * 19) Gṛhapaty-Ugra-paripṛcchā
 * 20) Vidyutprāpta-paripṛcchā
 * 21) Bhadramāyākāra-vyākaraṇa
 * 22) Mahā-prātihārya-nirdeśa
 * 23) Maitreya-mahāsiṁhanāda
 * 24) Upāli-paripṛcchā
 * 25) Adhyāśaya-saṁcodana
 * 26) Subāhu-paripṛcchā
 * 27) Surata-paripṛcchā
 * 28) Vīradatta-gṛhapati-paripṛcchā
 * 29) Udayanavatsarāja-paripṛcchā
 * 30) Sumatidārikā-paripṛcchā
 * 31) Gaṅgottarā-paripṛcchā
 * 32) Aśokadatta-vyākaraṇa
 * 33) Vimaladattā-paripṛcchā
 * 34) Guṇaratnasaṁkusumita-paripṛcchā
 * 35) Acintyabuddhaviṣaya-nirdeśa
 * 36) Susthitamati-devaputra-paripṛcchā
 * 37) Siṁha-paripṛcchā
 * 38) Upāyakauśalya-jñānottara-bodhisattva-paripṛcchā
 * 39) Bhadrapāla-śreṣṭhi-paripṛcchā
 * 40) Dārikā-vimalaśuddha-paripṛcchā
 * 41) Maitreya-paripṛcchā-dharmāṣṭaka
 * 42) Maitreya-paripṛcchā
 * 43) Kāśyapa-parivarta
 * 44) Ratnarāśi
 * 45) Akṣayamati-paripṛcchā
 * 46) Saptaśatikā-nāma-prajñāpāramitā
 * 47) Ratnacūḍa-paripṛcchā
 * 48) Śrīmālā-devī-siṁhanāda
 * 49) Ṛṣivyāsa-paripṛcchā

History
According to the Nikāyasaṅgraha (a Theravādin text), the Ratnakūṭa Sūtra was composed by the "Andhakas", meaning the Mahāsāṃghika Caitika schools of the Āndhra region. The texts of the sutra seem to have been collected over a number of centuries, and their varying subject matter is suggestive of historical transitions between major eras of Buddhist thought. The collection may have developed from a "Bodhisattva pitaka" attributed to some of the early Mahayana schools.