SB 5.3.12
atha kathañcit skhalana-ksut-patana-jrmbhana-duravasthanadisu vivasanam nah smaranaya jvara-marana-dasayam api sakala-kasmala-nirasanani tava guna-krta-namadheyani vacana-gocarani bhavantu.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Dear Lord, we may not be able to remember Your name, form and qualities due to stumbling, hunger, falling down, yawning or being in a miserable diseased condition at the time of death when there is a high fever. We therefore pray unto You, O Lord, for You are very affectionate to Your devotees. Please help us remember You and utter Your holy names, attributes and activities, which can dispel all the reactions of our sinful lives.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The real success in life is ante narayana-smrti — remembering the holy name, attributes, activities and form of the Lord at the time of death. Although we may be engaged in the Lord’s devotional service in the temple, material conditions are so tough and inevitable that we may forget the Lord at the time of death due to a diseased condition or mental derangement. Therefore we should pray to the Lord to be able to remember His lotus feet without fail at the time of death, when we are in such a precarious condition. In this regard, one may also see Srimad-Bhagavatam (6.2.9-10 and 14-15).