Hadith Claims the Prophet Wrongly Accused a Couple of Adultery

In the following Hadith, the prophet accused a man of fornicating with the mother of his son and, therefore, sent out Ali to kill the man. When Ali came upon the man, he found that the man did not have a penis.

Anas reported that a person was charged with fornication with the mother of Allah’s Messenger’s son. Thereupon Allah’s Messenger said to ‘Ali: Go and strike his neck. ‘Ali came to him, and he found him in a well, making his body cool. ‘Ali said to him: Come out, and as he took hold of his hand and brought him out, he found that his penis had been cut. ‘Ali refrained from striking his neck. He came to Allah’s Apostle and said: Allah’s Messenger, he is a castrated man and does not have a penis.

حَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا عَفَّانُ، حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، أَخْبَرَنَا ثَابِتٌ، عَنْ أَنَسٍ، أَنَّ رَجُلاً، كَانَ يُتَّهَمُ بِأُمِّ وَلَدِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لِعَلِيٍّ ‏ “‏ اذْهَبْ فَاضْرِبْ عُنُقَهُ ‏”‏ ‏.‏ فَأَتَاهُ عَلِيٌّ فَإِذَا هُوَ فِي رَكِيٍّ يَتَبَرَّدُ فِيهَا فَقَالَ لَهُ عَلِيٌّ اخْرُجْ ‏.‏ فَنَاوَلَهُ يَدَهُ فَأَخْرَجَهُ فَإِذَا هُوَ مَجْبُوبٌ لَيْسَ لَهُ ذَكَرٌ فَكَفَّ عَلِيٌّ عَنْهُ ثُمَّ أَتَى النَّبِيَّ صلى الله عليه وسلم فَقَالَ يَا رَسُولَ اللَّهِ إِنَّهُ لَمَجْبُوبٌ مَا لَهُ ذَكَرٌ

Sahih Muslim 2771 https://sunnah.com/muslim:2771