Sahih Muslim 1696 a
Imran b. Husain reported that a woman from Juhaina came to Allah's Apostle (ﷺ) and she had become pregnant because of adultery. She said:
Allah's Apostle, I have done something for which (prescribed punishment) must be imposed upon me, so impose that. Allah's Apostle (ﷺ) called her master and said: Treat her well, and when she delivers bring her to me. He did accordingly. Then Allah's Apostle (ﷺ) pronounced judgment about her and her clothes were tied around her and then he commanded and she was stoned to death. He then prayed over her (dead body). Thereupon Umar said to him: Allah's Apostle, you offer prayer for her, whereas she had committed adultery! Thereupon he said: She has made such a repentance that if it were to be divided among seventy men of Medina, it would be enough. Have you found any repentance better than this that she sacr ficed her life for Allah, the Majestic?
حَدَّثَنِي أَبُو غَسَّانَ، مَالِكُ بْنُ عَبْدِ الْوَاحِدِ الْمِسْمَعِيُّ حَدَّثَنَا مُعَاذٌ، - يَعْنِي ابْنَ هِشَامٍ - حَدَّثَنِي أَبِي، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، حَدَّثَنِي أَبُو قِلاَبَةَ، أَنَّ أَبَا الْمُهَلَّبِ، حَدَّثَهُ عَنْ عِمْرَانَ، بْنِ حُصَيْنٍ أَنَّ امْرَأَةً، مِنْ جُهَيْنَةَ أَتَتْ نَبِيَّ اللَّهِ صلى الله عليه وسلم وَهِيَ حُبْلَى مِنَ الزِّنَى فَقَالَتْ يَا نَبِيَّ اللَّهِ أَصَبْتُ حَدًّا فَأَقِمْهُ عَلَىَّ فَدَعَا نَبِيُّ اللَّهِ صلى الله عليه وسلم وَلِيَّهَا فَقَالَ ‏"‏ أَحْسِنْ إِلَيْهَا فَإِذَا وَضَعَتْ فَائْتِنِي بِهَا ‏"‏ ‏.‏ فَفَعَلَ فَأَمَرَ بِهَا نَبِيُّ اللَّهِ صلى الله عليه وسلم فَشُكَّتْ عَلَيْهَا ثِيَابُهَا ثُمَّ أَمَرَ بِهَا فَرُجِمَتْ ثُمَّ صَلَّى عَلَيْهَا فَقَالَ لَهُ عُمَرُ تُصَلِّي عَلَيْهَا يَا نَبِيَّ اللَّهِ وَقَدْ زَنَتْ فَقَالَ ‏"‏ لَقَدْ تَابَتْ تَوْبَةً لَوْ قُسِمَتْ بَيْنَ سَبْعِينَ مِنْ أَهْلِ الْمَدِينَةِ لَوَسِعَتْهُمْ وَهَلْ وَجَدْتَ تَوْبَةً أَفْضَلَ مِنْ أَنْ جَادَتْ بِنَفْسِهَا لِلَّهِ تَعَالَى ‏"‏ ‏.‏