Bhagavad Gita 13.23
उपद्रष्टानुमन्ता च भर्ता भोक्ता महेश्वरः। परमात्मेति चाप्युक्तो देहेऽस्मिन्पुरुषः परः।।13.23।।
upadraṣṭānumantā ca bhartā bhoktā maheśvaraḥ| paramātmeti cāpyukto dehe'sminpuruṣaḥ paraḥ||13.23||
upadrashtanumanta ca bharta bhokta maheshvarah paramatmeti capyukto dehe'sminpurushah parah13.23
Meaning
The Supreme Being in this body is also called the witness, the approver, the sustainer, the experiencer, the great Lord, and the Supreme Self.
परम पुरुष ही इस देह में उपद्रष्टा, अनुमन्ता, भर्ता, भोक्ता, महेश्वर और परमात्मा कहा जाता है।
This is verse 23 of 35 in Chapter 13 (Kshetra Kshetrajna Vibhaga Yoga) of the Bhagavad Gita.