Imam Ali (AS) said:

Beware, indeed this world that you desire and go towards it, and sometimes it makes you angry and other times happy; is not your permanent abode. And it is not an abode that you have been created for. Beware; the world will not be everlasting for you, and you will not last in it for ever [1].

[1] Nahjul Balaghah, Sermon 173.

Source: en.shafaqna.com