Prasthanatrayi

Prasthanatrayi (Sanskrit: प्रस्थानत्रयी), literally, three sources, refers to the three canonical texts of Hindu theology, particularly in the Vedanta tradition. It consists of the Upanishads, the Brahma Sutras, and the Bhagavad Gita

Notes

"All the founders of the three major schools of Vedanta, viz, Adi Shankara, Ramanujacharya, and Madhva wrote bhāṣyas (commentaries) on these texts."