24 : 4
وَٱلَّذِينَ يَرۡمُونَ ٱلۡمُحۡصَنَٰتِ ثُمَّ لَمۡ يَأۡتُواْ بِأَرۡبَعَةِ شُهَدَآءَ فَٱجۡلِدُوهُمۡ ثَمَٰنِينَ جَلۡدَةٗ وَلَا تَقۡبَلُواْ لَهُمۡ شَهَٰدَةً أَبَدٗاۚ وَأُوْلَٰٓئِكَ هُمُ ٱلۡفَٰسِقُونَ
As for those who accuse chaste women [of adultery] but fail to produce four witnesses, flog them eighty lashes and do not accept their testimony ever, for it is they who are the rebellious,