ब्रह्मसूत्र

it is one of three most important texts in Vedanta.

The Brahma sūtras, also known as the Vedānta Sūtras, are one of the three canonical texts of the Vedānta school of Hindu philosophy. Download this mobile application now and take all Four Adhyaya with you where ever you go. Deeply integrated with features you will easily be able to read the Four Adhyaya.

The Brahma Sūtras is a Sanskrit text, attributed to the sage Badarayana or sage Vyasa, estimated to have been completed in its surviving form in approx. 400-450 CE, while the original version might be ancient and composed between 1500 BCE and 1200 BCE. The text systematizes and summarizes the philosophical and spiritual ideas in the Upanishads. The Brahmaputra synthesized the diverse and sometimes conflicting teachings of Upanishads by arguing, as John Koller states: "that Brahman and Atman are, in some respects, different, but, at the deepest level, non-different (advaita), being identical." It is one of the foundational texts of the Vedānta school of Hindu philosophy.

The Brahma Sūtras or Brahmasutra are attributed to Badarayana. In some texts, Badarayana is also called Vyasa, which literally means "one who arranges".

Bādarāyana was the Guru  (teacher) of Jaimini , the latter credited with authoring Mimamsa Sutras of the Mimamsa school of Hindu philosophy. This is likely, given that both Badarayana and Jaimini quote each other as they analyze each other's theories, Badarayana emphasizing knowledge while Jaimini emphasizes rituals, sometimes agreeing with each other, sometimes disagreeing, often anti-thesis of the other.