It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever's heart is saturated with love of this world will be bound to three things from it: a hardship whose toil never ends, a greed whose sufficiency is never attained, and a hope whose end is never reached. This world both seeks and is sought. Whoever seeks this world, the Hereafter seeks him until death comes to him and seizes him; and whoever seeks the Hereafter, this world seeks him until he receives his full allotted provision."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10290