Hadith 68:55
Narrated `Abdullah:
An Ansari man accused his wife (of committing illegal sexual intercourse). The Prophet (ﷺ) made both of them takes the oath of Lian, and separated them from each other (by divorce).
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلُ، حَدَّثَنَا جُوَيْرِيَةُ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ أَنَّ رَجُلاً مِنَ الأَنْصَارِ قَذَفَ امْرَأَتَهُ فَأَحْلَفَهُمَا النَّبِيُّ صلى الله عليه وسلم ثُمَّ فَرَّقَ بَيْنَهُمَا
Original Reference: Sahih al-Bukhari 5306