BG 8.20
परस्तस्मात्तु भावोऽन्योऽव्यक्तोऽव्यक्तात्सनातनः
यः स सर्वेषु भूतेषु नश्यत्सु न विनश्यति
parastasmāttu bhāvo'nyo'vyakto'vyaktātsanātanaḥ
yaḥ sa sarveṣu bhūteṣu naśyatsu na vinaśyati
TRANSLATION
There is, however, another non-manifest being than this non-manifest entity, which is eternal; this is not destroyed when all entities are destroyed.