"We were in the mosque one Friday night when a man said: 'If a man finds a man with his wife and kills him, will you kill him, and if he speaks,will you flog him. By Allah I will mention that to the Prophet ﷺ. So he mentioned that to the Prophet ﷺ, and Allah revealed the Verses of Li'an. Then after that the man came and accused his wife, so the Prophet ﷺ told them to go through the procedure of Li'an and he said: 'Perhaps she will give birth to a black child.’ Then she gave birth to a black child with curly hair." (Using translation from Ibn Mājah 2068)   

أَنَّ رَجُلًا وَجَدَ مَعَ امْرَأَتِهِ رَجُلًا فَقَتَلَهُ قَتَلْتُمُوهُ وَإِنْ تَكَلَّمَ بِهِ جَلَدْتُمُوهُ لَأَذْكُرَنَّ ذَلِكَ لِرَسُولِ اللهِ ﷺ قَالَ فَذَكَرَهُ لِلنَّبِيِّ ﷺ فَأَنْزَلَ اللهُ ﷻ آيَاتِ اللِّعَانِ ثُمَّ جَاءَ الرَّجُلُ فَقَذَفَ امْرَأَتَهُ فَلَاعَنَ رَسُولُ اللهِ ﷺ بَيْنَهُمَا وَقَالَ عَسَى أَنْ تَجِيءَ بِهِ أَسْوَدَ جَعْدًا فَجَاءَتْ بِهِ أَسْوَدَ جَعْدًا  

[Machine] A man found his wife with another man, so he killed him. You have killed him, and if he speaks, you will lash him. I will surely mention this to the Messenger of Allah. So he mentioned it to the Messenger of Allah, and Allah revealed the verses of cursing. Then the man came and accused his wife, so the Messenger of Allah issued the curse between them and said, "Perhaps she will bring forth a black, curly-haired child." He said, "So she brought forth a black, curly-haired child."  

أَنَّ رَجُلًا وَجَدَ مَعَ امْرَأَتِهِ رَجُلًا فَقَتَلَهُ قَتَلْتُمُوهُ وَإِنْ تَكَلَّمَ جَلَدْتُمُوهُ لَأَذْكُرَنَّ ذَلِكَ لِرَسُولِ اللهِ ﷺ فَذَكَرَهُ لِرَسُولِ اللهِ ﷺ فَأَنْزَلَ اللهُ تَعَالَى آيَاتِ اللِّعَانِ ثُمَّ جَاءَ الرَّجُلُ فَقَذَفَ امْرَأَتَهُ فَلَاعَنَ رَسُولُ اللهِ ﷺ بَيْنَهُمَا وَقَالَ لَعَلَّهَا أَنْ تَجِيءَ بِهِ أَسْوَدَ جَعْدًا قَالَ فَجَاءَتْ بِهِ أَسْوَدَ جَعْدًا