Bhagavad Gita · 5.9

प्रलपन्विसृजन्गृह्णन्नुन्मिषन्निमिषन्नपि।इन्द्रियाणीन्द्रियार्थेषु वर्तन्त इति धारयन्॥

pralapan visṛjan gṛhṇann unmiṣhan nimiṣhann api indriyāṇīndriyārtheṣhu vartanta iti dhārayan

Speaking, releasing, grasping, opening and closing the eyes — the wise person understands that it is merely the senses interacting with their objects.

— Bhagavad Gita 5.9

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)