Az-Zukhruf - 43:33

وَلَوْلَا أَن يَكُونَ النَّاسُ أُمَّةً وَاحِدَةً لَجَعَلْنَا لِمَن يَكْفُرُ بِالرَّحْمَنِ لِبُيُوتِهِمْ سُقُفًا مِّن فَضَّةٍ وَمَعَارِجَ عَلَيْهَا يَظْهَرُونَ
[43:33]
And were it not that all people had been a single nation, We would certainly have assigned to those who disbelieve in the Beneficent Allah (to make) of silver the roofs of their houses and the stairs by which they ascend.
And were it not that (all) men might become of one (evil) way of life, We would provide, for everyone that blasphemes against (Allah) Most Gracious, silver roofs for their houses and (silver) stair-ways on which to go up,
And were it not that mankind would have become one community, We might well have appointed, for those who disbelieve in the Beneficent, roofs of silver for their houses and stairs (of silver) whereby to mount,