Al Ahzab Ayah 30
يَـٰنِسَآءَ ٱلنَّبِىِّ مَن يَأْتِ مِنكُنَّ بِفَـٰحِشَةٍ مُّبَيِّنَةٍ يُضَـٰعَفْ لَهَا ٱلْعَذَابُ ضِعْفَيْنِۚ وَكَانَ ذَٲلِكَ عَلَى ٱللَّهِ يَسِيرًا ٣٠
O wives of the Prophet! If any of you were to commit a blatant misconduct, the punishment would be doubled for her. And that is easy for Allah.