Patanjali Yoga Sutra 1.41

Sanskrit Sutra

क्षीणवृत्तेरभिजातस्येव मणेर्ग्रहीतृ-ग्रहण-ग्राह्येषु तत्स्थ-तदञ्जनता समापत्तिः॥४१॥

Swami Vivekananda's translation

The Yogi whose Vrittis have thus become powerless (controlled) obtains in the receiver, (the instrument of) receiving, and the received (the Self, the mind, and external objects), concentratedness and sameness like the crystal (before different coloured objects).

Chapter link: Yoga Sutra Chapter 1