Bhagavad Gita 8.2
अधियज्ञः कथं कोऽत्र देहेऽस्मिन्मधुसूदन। प्रयाणकाले च कथं ज्ञेयोऽसि नियतात्मभिः।।8.2।।
adhiyajñaḥ kathaṃ ko'tra dehe'sminmadhusūdana| prayāṇakāle ca kathaṃ jñeyo'si niyatātmabhiḥ||8.2||
adhiyajnah katham ko'tra dehe'sminmadhusudana prayanakale ca katham jneyo'si niyatatmabhih8.2
Meaning
Arjuna specifically asks: Who is the Lord of sacrifice in this body, and how does He dwell here? And how can those who are self-controlled know Him at the time of death?
और हे मधुसूदन! यहाँ अधियज्ञ कौन है? और वह इस शरीर में कैसे है? और संयत चित्त वाले पुरुषों द्वारा अन्त समय में आप किस प्रकार जाने जाते हैं?
This is verse 2 of 28 in Chapter 8 (Aksara Brahma Yoga) of the Bhagavad Gita.