I said to Ibn ʿUmar, "If a man accuses his wife of illegal sexual intercourse (what is the judgment)?" He said, "Allah's Prophet separated the couple of Bani 'Ajlan (when the husband accused his wife for an illegal sexual intercourse). The Prophet ﷺ said, 'Allah knows that one of you two IS a liar; so will one of you repent?' But they refused. He then again said, 'Allah knows that one of you two is a liar; so will one of you repent?' But they refused, whereupon he separated them by divorce." Aiyub (a subnarrator) said: ʿAmr bin Dinar said to me, "In the narration there is something which I do not see you mentioning, i.e. the husband said, "What about my money (Mahr)?' The Prophet ﷺ said, "You are not entitled to take back money, for if you told the truth you have already entered upon her (and consummated your marriage with her) and if you are a liar then you are less entitled to take it back.  

قُلْتُ لاِبْنِ عُمَرَ رَجُلٌ قَذَفَ امْرَأَتَهُ فَقَالَ فَرَّقَ نَبِيُّ اللَّهِ ﷺ بَيْنَ أَخَوَىْ بَنِي الْعَجْلاَنِ وَقَالَ اللَّهُ يَعْلَمُ أَنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبٌ فَأَبَيَا فَقَالَ اللَّهُ يَعْلَمُ أَنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبٌ فَأَبَيَا فَفَرَّقَ بَيْنَهُمَا قَالَ أَيُّوبُ فَقَالَ لِي عَمْرُو بْنُ دِينَارٍ فِي الْحَدِيثِ شَىْءٌ لاَ أَرَاكَ تُحَدِّثُهُ قَالَ قَالَ الرَّجُلُ مَالِي قَالَ لاَ مَالَ لَكَ إِنْ كُنْتَ صَادِقًا فَقَدْ دَخَلْتَ بِهَا وَإِنْ كُنْتَ كَاذِبًا فَهْوَ أَبْعَدُ مِنْكَ  

I asked Ibn ʿUmar, "(What is the verdict if) a man accuses his wife of illegal sexual intercourse?" Ibn ʿUmar said, "The Prophet ﷺ separated (by divorce) the couple of Bani Al-Ajlan, and said, (to them), 'Allah knows that one of you two is a liar; so will one of you repent?' But both of them refused. He again said, 'Allah knows that one of you two is a liar; so will one of you repent?' But both of them refused. So he separated them by divorce." (Aiyub, a sub-narrator said: ʿAmr bin Dinar said to me, "There is something else in this Hadith which you have not mentioned. It goes thus: The man said, 'What about my money (i.e. the Mahr that I have given to my wife)?' It was said, 'You have no right to restore any money, for if you have spoken the truth (as regards the accusation), you have also consummated your marriage with her; and if you have told a lie, you are less rightful to have your money back.' ")  

قُلْتُ لاِبْنِ عُمَرَ رَجُلٌ قَذَفَ امْرَأَتَهُ فَقَالَ فَرَّقَ النَّبِيُّ ﷺ بَيْنَ أَخَوَىْ بَنِي الْعَجْلاَنِ وَقَالَ اللَّهُ يَعْلَمُ أَنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبٌ فَأَبَيَا وَقَالَ اللَّهُ يَعْلَمُ أَنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبُ فَأَبَيَا فَقَالَ اللَّهُ يَعْلَمُ أَنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبٌ فَأَبَيَا فَفَرَّقَ بَيْنَهُمَا قَالَ أَيُّوبُ فَقَالَ لِي عَمْرُو بْنُ دِينَارٍ إِنَّ فِي الْحَدِيثِ شَيْئًا لاَ أَرَاكَ تُحَدِّثُهُ قَالَ قَالَ الرَّجُلُ مَالِي قَالَ قِيلَ لاَ مَالَ لَكَ إِنْ كُنْتَ صَادِقًا فَقَدْ دَخَلْتَ بِهَا وَإِنْ كُنْتَ كَاذِبًا فَهْوَ أَبْعَدُ مِنْكَ  

"I said to Ibn 'Umar: 'A man accused his wife.' He said: 'The Messenger of Allah separated the couple from Banu 'Ajlan and said: Allah knows that one of you is lying, so will either of you repent? He said that to them three times and they did not respond, then he separated them.'" (One of the narrators) Ayyub said: "Amr bin Dinar said: 'In this Hadith there is something that I think you are not narrating.' He said: 'The man said: My wealth. He said: You are not entitled to any wealth. If you are telling the truth, you have consummated the marriage with her, and if you are lying then you are even less entitled to it.'"  

قُلْتُ لاِبْنِ عُمَرَ رَجُلٌ قَذَفَ امْرَأَتَهُ قَالَ فَرَّقَ رَسُولُ اللَّهِ ﷺ بَيْنَ أَخَوَىْ بَنِي الْعَجْلاَنِ وَقَالَ اللَّهُ يَعْلَمُ إِنَّ أَحَدَكُمَا كَاذِبٌ فَهَلْ مِنْكُمَا تَائِبٌ قَالَ لَهُمَا ثَلاَثًا فَأَبَيَا فَفَرَّقَ بَيْنَهُمَا قَالَ أَيُّوبُ وَقَالَ عَمْرُو بْنُ دِينَارٍ إِنَّ فِي هَذَا الْحَدِيثِ شَيْئًا لاَ أَرَاكَ تُحَدِّثُ بِهِ قَالَ قَالَ الرَّجُلُ مَالِي قَالَ لاَ مَالَ لَكَ إِنْ كُنْتَ صَادِقًا فَقَدْ دَخَلْتَ بِهَا وَإِنْ كُنْتَ كَاذِبًا فَهِيَ أَبْعَدُ مِنْكَ  

"عن ابن عمر قال: فَرَّقَ رَسُولُ الله ﷺ بَيْنَ أَخَوَىْ بَنِى العَجْلاَنِ وَقَالَ: وَاللهِ إِنَّ أَحَدَكمَا لَكَاذِبٌ، فَهَلْ مِنْكُمَا تَائِب؟ فَلَمْ يَعْتَرِفْ وَاحِدٌ منْهُمَا، فَتَلاَعَنَا، ثُمَّ فَرَّقَ بَيْنَهُمَا قَالَ: يَا رَسُولَ اللهِ! صَدَاقِى، فَقَالَ لَهُ النَّبىُّ ﷺ إِنْ كُنْتَ صَادِقًا فَهُو لَهَا بِمَا اسْتَحْلَلتَ مِنْهَا، وَإِنْ كنْتَ كَاذِبًا فَذَاكَ أَوْجَبُ لَهَا".