An-Nur 24:4

وَٱلَّذِينَ يَرْمُونَ ٱلْمُحْصَنَـٰتِ ثُمَّ لَمْ يَأْتُوا۟ بِأَرْبَعَةِ شُهَدَآءَ فَٱجْلِدُوهُمْ ثَمَـٰنِينَ جَلْدَةً وَلَا تَقْبَلُوا۟ لَهُمْ شَهَـٰدَةً أَبَدًا ۚ وَأُو۟لَـٰٓئِكَ هُمُ ٱلْفَـٰسِقُونَ

Wa-alladhīna yarmūna l-muḥ'ṣanāti thumma lam yatū bi-arbaʿati shuhadāa fa-ij'lidūhum thamānīna jaldatan walā taqbalū lahum shahādatan abadan wa-ulāika humu l-fāsiqūna

And those who accuse chaste women and then do not produce four witnesses - lash them with eighty lashes and do not accept from them testimony ever after. And those are the defiantly disobedient,