Bhagavad Gita 11.7
Here, living in Me, O Arjuna, behold the entire universe, both movable and immovable, and anything else you would like to see!
इहैकस्थं जगत्कृत्स्नं पश्याद्य सचराचरम्।
मम देहे गुडाकेश यच्चान्यद्द्रष्टुमिच्छसि॥ihaikasthaṃ jagatkṛtsnaṃ paśyādya sacarācaram|
mama dehe guḍākeśa yaccānyaddraṣṭumicchasi||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).