Bhagavad Gita 5.9

प्रलपण्विसृजन्गृहम्न्नुन्नमिषन्निमिष्न्नपि |
इन्द्रियाणिन्द्रियार्थेषु वर्तन्त इति धारयन्

Translation

Speaking, excreting, grasping, and opening or closing the eyes. With the light of divine knowledge, they see that it is only the material senses that are moving amongst their objects.