وَتَتَّخِذُونَ مَصَانِعَ لَعَلَّكُمْ تَخْلُدُونَ
[26:129]
And you make strong fortresses that perhaps you may
"And do ye get for yourselves fine buildings in the hope of living therein (for ever)?
And seek ye out strongholds, that haply ye may last for ever?