Aal-'Imran - 3:107

وَأَمَّا الَّذِينَ ابْيَضَّتْ وُجُوهُهُمْ فَفِي رَحْمَةِ اللّهِ هُمْ فِيهَا خَالِدُونَ
[3:107]
And as to those whose faces turn white, they shall be in Allah's mercy; in it they shall-abide.
But those whose faces will be (lit with) white,- they will be in (the light of) Allah's mercy: therein to dwell (for ever).
And as for those whose faces have been whitened, in the mercy of Allah they dwell for ever.