CC Madhya 24.183
necchanti sevayā pūrṇāḥ
kuto ’nyat kāla-viplutam
“ ‘My devotees, having fulfilled their desires by serving Me, do not accept the four kinds of salvation that are easily earned by such service. Why then should they accept any pleasures that are lost in the course of time?’
This is a quotation from Śrīmad-Bhāgavatam (9.4.67).