Chapter 5 · The Yoga of Renunciation · Krishna said
Bhagavad Gita 5.4 — Knowledge and action are one
साङ्ख्ययोगौ पृथग्बालाः प्रवदन्ति न पण्डिताः। एकमप्यास्थितः सम्यगुभयोर्विन्दते फलम् ॥
sāṅkhyayogau pṛthagbālāḥ pravadanti na paṇḍitāḥ | ekamapyāsthitaḥ samyagubhayorvindate phalam ||
Meaning
Only the immature say that the path of knowledge (Sankhya) and the path of action (yoga) are different; the wise do not. Whoever truly follows even one of them gains the fruit of both.