SB 11.9.1
sri-brahmana uvaca
parigraho hi duhkhaya
yad yat priyatamam nrnam
anantam sukham apnoti
tad vidvan yas tv akiñcanah
Translation:
The saintly brahmana said: Everyone considers certain things within the material world to be most dear to him, and because of attachment to such things one eventually becomes miserable. One who understands this gives up material possessiveness and attachment and thus achieves unlimited happiness.