Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 42

Sanskrit:

यस्त्वां विसृजते मर्त्य आत्मानं प्रियमीश्वरम् ।विपर्ययेन्द्रियार्थार्थं विषमत्त्यमृतं त्यजन् ॥ ४२ ॥

ITRANS:

yas tvāṁ visṛjate martyaātmānaṁ priyam īśvaramviparyayendriyārthārthaṁviṣam atty amṛtaṁ tyajan

Translation:

That mortal who rejects You — his true Self, dearmost friend, and Lord — for the sake of sense objects, whose nature is just the opposite, refuses nectar and instead consumes poison.

Purport:

The person described above is pitiable because he rejects that which is actually dear, the Lord, and accepts that which is not dear and is ungodly: temporary sense gratification, which leads to suffering and bewilderment.