Imam Ali (AS) said, Let your renunciation be of that thing which perishes and disappears, for indeed neither will it remain for you nor will you remain for it.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : لِيَكُنْ زُهْدُكَ فيما يَنْفَدُ وَ يَزُولُ فَإنَّهُ لا يَبْقى لَكَ وَلا تَبْقى لَهُ