Sura al-Nūr 24:2

ٱلزَّانِيَةُ وَٱلزَّانِى فَٱجْلِدُوا۟ كُلَّ وَٰحِدٍ مِّنْهُمَا مِا۟ئَةَ جَلْدَةٍ وَلَا تَأْخُذْكُم بِهِمَا رَأْفَةٌ فِى دِينِ ٱللَّـهِ إِن كُنتُمْ تُؤْمِنُونَ بِٱللَّـهِ وَٱلْيَوْمِ ٱلْأَخِرِ وَلْيَشْهَدْ عَذَابَهُمَا طَآئِفَةٌ مِّنَ ٱلْمُؤْمِنِينَ

l-zāniyatu wa-l-zānī fa-ijlidū kulla wāḥidin minhumā miʾata jaldatin wa-lā takhudhkum bihimā raʾfatun fī dīni allāhi in kuntum tuʾminūna billāhi wa-l-yawmi l-akhiri wa-l-yashhad ʿadhābahumā ṭāʾifatun mina l-muʾminīna

The woman and the man guilty of adultery or fornication,- flog each of them with a hundred stripes: Let not compassion move you in their case, in a matter prescribed by Allah, if ye believe in Allah and the Last Day: and let a party of the Believers witness their punishment.