The Charaka Samhita is a Sanskrit text on Ayurveda. Along with the Sushruta Samhita, it is one of the two foundational texts of this field that have survived from ancient India. It is one of the three works that constitute the Brhat Trayi.

The Atharvaveda or Atharva Veda or Atharvana Veda is the "knowledge storehouse of atharvāṇas, the procedures for everyday life". The text is the fourth Veda, and is a late addition to the Vedic scriptures of Hinduism.