Chapter 9, Verse 2 - rāja-vidyā rāja-guhyaṁ pavitram idam uttamam pratyakṣāvagamaṁ dharmyaṁ su-sukhaṁ kartum avyayam

Chapter 9, Verse 2 - rāja-vidyā rāja-guhyaṁ pavitram idam uttamam pratyakṣāvagamaṁ dharmyaṁ su-sukhaṁ kartum avyayam | GitaLink