Az-Zukhruf 43:33

وَلَوۡلَآ أَن يَكُونَ ٱلنَّاسُ أُمَّةٗ وَٰحِدَةٗ لَّجَعَلۡنَا لِمَن يَكۡفُرُ بِٱلرَّحۡمَٰنِ لِبُيُوتِهِمۡ سُقُفٗا مِّن فِضَّةٖ وَمَعَارِجَ عَلَيۡهَا يَظۡهَرُونَ 33

And if it were not that the people would become one community [of disbelievers], We would have made for those who disbelieve in the Most Merciful - for their houses - ceilings and stairways of silver upon which to mount