Chapter 13 · verse 5 · gita.yoga.org

Bhagavad Gita 13.5

ऋषिभिर्बहुधा गीतं छन्दोभिर्विविधैः पृथक्।ब्रह्मसूत्रपदैश्चैव हेतुमद्भिर्विनिश्चितैः

Sages have sung in many ways, with various distinctive chants and also with suggestive words indicative of the Absolute, full of reasoning and decisive.