Surah An-Nur — Ayah 8 (24:8)
وَيَدۡرَؤُاْ عَنۡهَا ٱلۡعَذَابَ أَن تَشۡهَدَ أَرۡبَعَ شَهَٰدَٰتِۭ بِٱللَّهِ إِنَّهُۥ لَمِنَ ٱلۡكَٰذِبِينَ ٨
English translation (Saheeh International)
But it will prevent punishment from her if she gives four testimonies [swearing] by Allāh that indeed, he is of the liars.
Brief commentary
Through this she will be deserving of the fixed punishment for adultery. She will repel this fixed punishment by testifying by Allah four times: that he is lying in what he has accused her of.