The Vedas are the most ancient and sacred scriptures of Hinduism. The term 'Vedatrayi' is a traditional classification that groups the first three Vedas together based on their importance and function in ancient Vedic rituals.
Step 1: Understanding the Question
The question asks to identify which of the four Vedas is considered an outsider to the classical group known as 'Vedatrayi' or the "Vedic Triad".
Step 2: Detailed Explanation
The term Vedatrayi (or Trayi Vidya, "the threefold knowledge") traditionally refers to the three primary Vedas:
- Rigveda: The Veda of hymns and praises (recited by the Hotri priest).
- Samaveda: The Veda of melodies and chants (sung by the Udgatri priest).
- Yajurveda: The Veda of sacrificial formulas and procedures (used by the Adhvaryu priest).
These three were considered the pillars of the Vedic Yajna (sacrificial ritual).
The Atharvaveda was compiled later and deals with a different set of subjects, including spells, charms, healing, and aspects of daily life. Due to its different character and later recognition, it is not part of the original Vedatrayi.
Step 3: Final Answer
Therefore, the Veda not included in the 'Vedatrayi' is the Atharvaveda.