Bhagavad-gītā 13.5
BG 13.5
Open the full passageऋषिभिर्बहुधा गीतं छन्दोभिर्विविधैः पृथक् । ब्रह्मसूत्रपदैश्चैव हेतुमद्भिर्विनिश्चितैः ॥५॥
Sanskrit
ṛṣibhir bahudhā gītaṁ chandobhir vividhaiḥ pṛthak brahma-sūtra-padaiś caiva hetumadbhir viniścitaiḥ
Translation
That knowledge of the field of activities and of the knower of activities is described by various sages in various Vedic writings. It is especially presented in Vedānta-sūtra with all reasoning as to cause and effect.