Chapter 14 · The Three Qualities · Krishna said
Bhagavad Gita 14.23 — Being a witness
उदासीनवदासीनो गुणैर्यो न विचाल्यते। गुणा वर्तन्त इत्येवं योऽवतिष्ठति नेङ्गते ॥
udāsīnavadāsīno guṇairyo na vicālyate | guṇā vartanta ityevaṃ yo'vatiṣṭhati neṅgate ||
Meaning
He stays like a neutral witness, undisturbed by the gunas. Knowing that only the gunas are at work, he remains steady and does not waver.