Madhvacharya's Dvaita Vedanta and translation of Sarvamoola containing Bhagavad Gita, Upanishads, and Brahmasutra.

Bhagavad Gīta Bhāshya and Tātparya

sarvasya cāhaṃ hṛdi saṃniviṣṭo mattaḥ smṛtirjñānamapohanaṃ ca। vedaiśca sarvairahameva vedyo vedāntakṛdvedavideva cāham ॥15॥

I reside in the heart of every being, and from me arise memory, knowledge, and removal of misconceptions. Through all the Vedas, I am to be understood; I am the author of Vedānta and the one who truly knows the Vedas.

Gīta Tātparya 15.15

Lord Vyāsa is the author of Vedānta sutras, i.e. Brahma sutras.

"sa eva vyāsarūpeṇa vedāntakṛdudāhṛtaḥ।"

He is indeed mentioned as the author of the Vedānta in the form of Vyāsa.

बहुचित्रजगद्बहुधाकरणात् परशक्तिरनन्तगुणः परमः ।
सुखरूपममुष्य पदं परमं स्मरतस्तु भविष्यति तत्सततम् ॥
"The one who has created this variegated vast universe with varied forms has infinite power and is of infinite auspicious qualities. He certainly bestows the highest state of bliss to those who meditate on his ever happy essence." -Dwādasha stōtra 4.3

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