O wives of the Prophet, whoever of you should commit a clear immorality - for her the punishment would be doubled two fold, and ever is that, for Allah, easy.
The Saheeh International Quran Translation
يَٰنِسَآءَ ٱلنَّبِىِّ مَن يَأْتِ مِنكُنَّ بِفَٰحِشَةٍ مُّبَيِّنَةٍ يُضَٰعَفْ لَهَا ٱلْعَذَابُ ضِعْفَيْنِ وَكَانَ ذَٰلِكَ عَلَى ٱللَّهِ يَسِيرًاO wives of the Prophet, whoever of you should commit a clear immorality - for her the punishment would be doubled two fold, and ever is that, for Allah, easy.