Surah Ash-Shu'ara, ayah 129

26:129

وَتَتَّخِذُونَ مَصَانِعَ لَعَلَّكُمۡ تَخۡلُدُونَ ١٢٩

Watattakhidhūna masāni'a la'allakum takhludūn

And take for yourselves constructions [i.e., palaces and fortresses] that you might abide eternally?