Bhagavatapurana 9.4.16

9.4.16

mene 'tidurlabhaṃ puṃsāṃ sarvaṃ tat svapnasaṃstutam /
vidvān vibhavanirvāṇaṃ tamo viśati yat pumān //

15. & 16. Sri Suka said:—The blessed (Emperor) Ambareesha who had gained the whole world of seven continents, and an undecaying fortune and unequalled power—all that may not be easily got by men, considered it (only) as good as a dream; for he knew that all wealth is perishable and that thereby a person only enters the darkness (which is destitute of all splendour).