Sura al-Aḥzāb 33:30

يَٰنِسَآءَ ٱلنَّبِىِّ مَن يَأْتِ مِنكُنَّ بِفَٰحِشَةٍ مُّبَيِّنَةٍ يُضَٰعَفْ لَهَا ٱلْعَذَابُ ضِعْفَيْنِ وَكَانَ ذَٰلِكَ عَلَى ٱللَّـهِ يَسِيرًا

yā-nisāʾa l-nabiyyi man yaʾti minkunna bi-fāḥishatin mubayyinatin yuḍāʿaf lahā l-ʿadhābu ḍiʿfayni wa-kāna dhālika ʿalā allāhi yasīran

O Consorts of the Prophet! If any of you were guilty of evident unseemly conduct, the Punishment would be doubled to her, and that is easy for Allah.