The highest perfection of human life, achieved either by complete knowledge of matter and spirit, by practice of mystic powers, or by perfect discharge of occupational duty, is to remember the Personality of Godhead at the end of life.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
एतावान् साङ्ख्ययोगाभ्यां स्वधर्मपरिनिष्ठया । जन्मलाभः परः पुंसामन्ते नारायणस्मृतिः
etāvān sāṅkhyayogābhyāṃ svadharmapariniṣṭhayā | janmalābhaḥ paraḥ puṃsāmante nārāyaṇasmṛtiḥ
SB 2.1.6