Sanskrit Buddhist literature refers to Buddhist texts composed in classical Sanskrit or Buddhist Hybrid Sanskrit. Sanskrit was the main language used by Indian Mahayana Buddhists and most major Mahayana sutras were composed in this language.
While the earliest Buddhist texts were orally composed and transmitted in Middle Indo-Aryan languages called Prakrits; Sanskrit gradually became the main language of Buddhist scriptures and scholasticism in India mirroring its rise as political and literary lingua franca of the Indian subcontinent. This process began with the north-western Indian Buddhists of the Kushan empire (CE 30-375). The Sarvastivadin school wrote most of their Abhidharma texts in Sanskrit and many Mahayana sutras such as the Prajnaparamita sutra were composed in Mixed Sanskrit. The use of pure classical Sanskrit began with Asvaghosa (c. 100 CE), author of the Buddhacarita and one of the earliest Sanskrit dramatists. Major Buddhist thinkers like Nagarjuna, Dharmakirti and Vasubandhu also wrote in Sanskrit.
Johannes Bronkhorst argues that the main reason for the Buddhist adoption of Sanskrit was that the language had become associated with political prestige and power which was sought after by Buddhist viharas. The increase wealth and size of Buddhist monasteries such as Nalanda meant that they required elite patronage, and knowledge of Sanskrit was a way to cater to and communicate with the more educated upper classes and royal courts of Indian rulers. Later Buddhists, like their Hindu counterparts, began to believe that Sanskrit was the one original holy language. The decline of Buddhism in India saw the loss of a large number of Sanskrit Buddhist texts. The use of Sanskrit as a sacred language survives in the Newar Buddhism of Nepal and thus the vast majority of Sanskrit Buddhist manuscripts were preserved by this tradition.
Early sutra and Agamas
There is no complete Sanskrit copy of any of the Agamas, many fragments have been found, especially in the Tarim Basin and the city of Turfan.
Sarvāstivāda Dīrgha Agama (fragmentary)Madhyama āgama (fragmentary)Sarvāstivāda Saṃyukta Āgama (fragmentary)Ekottara Agama (fragmentary)UdanavargaDharmapadaSutra Nipata (fragmentary)Ajitasena Sutra (a 'proto-mahayana' text)Prajnaparamita (perfection of wisdom) sutras
Śatasāhasrikā - 100000 linesPañcaviṃśati Sāhasrikā - 25000 linesAṣṭadaśa Sāhasrikā - 18000 lines (fragments)Daśa Sāhasrikā - 10,000 (fragments)Aṣtasahasrika - 8000 linesAdhyardha sāhasrikā - 2500 linesRatnagunasancayagathaAdvayasatika PrajnaparamitaSuvikrantigrami-paripṛccha Prajñāpāramitā nirdeśa SūtraPañcaśatikā Prajñāpāramitā Sūtra - 500 linesVajracchedikā Prajñāpāramitā Sūtra-300 linesPrajñāpāramitā Hṛdaya SūtraAvatamsaka (flower ornament) sutras
Avatamsaka SutraGandavyuha SutraDasabhumika sutraRatnakuta sutras (Heap of Jewels)
Kashyapaparivarta nama Mahayana sutraSukhavativyuha sutra (larger) aka Infinite Life SutraSukhavativyuha (smaller) aka Amitabha SutraBhaisajyaguruvaiduryaprabharaja SutraNairatmyapariprccha sutraAparimitayurjnana sutraRastrapalaparipṛchha sutraSagarnagarajaparipṛccha sutraTriskandhanama Mahayana sutraVimalakīrti Nirdeśa SūtraOther Mahayana sutras
Saddharma Pundarika Sutra - Lotus sutraLaṅkāvatāra SūtraSamadhiraja SutraSuvarṇaprabhāsa Sūtra - Golden Light SutraKāraṇḍavyūhasūtraSaddharma-Smṛtyupasthāna Sūtra - "Fine-dharma establishing of mindfulness"Pratyutpannabuddhasammukhāvaṣṭhitasamādhi Sūtra, ‘Samādhi of the Direct Encounter with Buddhas of the Present’Vinaya (discipline, monastic regulations)
Bodhisattva Prātimokṣa SutraBhiksu-karmavakyaBhiksuni-vinayaMulasarvastivada-vinayavastuPratimoksa sutra of MulasarvastivadaPratimoksa sutra of MahasanghikaPratimoksa sutra of SarvastivadaVinaya sutra of GunaprabhaVinaya viniscaya Upalipariprccha sutraAbhidharma
ArthaviniścayaAbhidharma-kosa-bhasya of VasubandhuAbhidharma-samuccaya of AsangaAbhidharma-samuccaya-bhasyaJnanaprasthan shastra - Arya Katyayaniputra (fragmentary)Abhidharmamrita-GhosakaSatyasiddhisastra of HaribhadraPrajnaptipada - Maudgalyayana / Maha KatyayanaSputarthabhidharmakosavyakhya of YasomitraDharani - several collections from Nepal
Aparimitayur DharaniAvadana
Avadanasataka (100 stories)Kalpadrumavadanamala (26 stories)AsokavadanamalaVicitrakarnika Avadanamala (32 stories)Divyavadana (38 stories)Vrata Avadana (3 stories)Bhadrakalpa Avadana (34 stories)Mahavastu AvadanaDvavimsatya Avadana (22 stories)Sugata AvadanaRatnamala Avadana (12 stories)Avadanakalpalata (108 stories)BodhisattvavadanaUposadhavadanaSuchandravadanaLalitavistara SūtraKumaralata's Kalpanamanditika (fragmentary, prose and verse)Jataka
Jatakamala of AryashuraJatakamala of HaribhattaStotra
Prajñāpāramitā-stotra attributed to RahulabhadraDharmadhatu-stava (praise to the sphere of reality) and other works attributed to NagarjunaThe Satapañcasatka and the Catusataka of MatṛcetaCatusataka of AryadevaShastra (treatise or commentary)
Prajnaparamita shastrasMadhyamaka shastrasMūlamadhyamakakārikā and other works by NagarjunaCaryāmelāpakapradīpa (Lamp That Integrates the Practices) by AryadevaŚikṣāsamuccaya-kārikā by ShantidevaMadhyamakāvatāra (Entering the Middle Way) by CandrakīrtiMadhyamakahṛdaya-Kārikā by BhāvivekaYogacara shastrasYogacarabhumi-sastraAbhisamayalankaraMahāyānasūtrālamkārakārikāRatnagotravibhāgaMadhyanta-vibhaga-karikaMahayana-sutra-alamkara-karikaTrisvabhāva-nirdeśa by VasubandhuVimśatikāvijñaptimātratāsiddhi by VasubandhuTriṃśikā-vijñaptimātratā by VasubandhuPramana shastrasSeven Treatises on Valid Cognition by DharmakirtiPrasannapadā (Clear Words) by CandrakīrtiNirdesh shastrasTantra
Kriya tantrasCarya tantrasYoga tantrasAnuttarayoga TantraSahajayana texts (“Vehicle of the Natural” or “Easy Vehicle”)Ritual Vrata textsSadhana textsOther (practice manuals, philosophical treatises, etc.)
Bodhisattvacaryāvatāra (the way of the Bodhisattva) by ShantidevaBhāvanākrama (Stages of meditation) by KamalashilaMahakavya - Epic Poetry
Asvaghosa's Buddhacarita (partial in Sanskrit, complete in Chinese)Asvaghosa's Saundarananda MahakavyaMaitreyavyakarana (prophecy of Maitreya) of Aryacandra (fragmentary)Sanskrit Drama
Asvaghosha's Sariputra-Prakarana (partial, ninth and last chapters)