كتاب النكاح
16
The Book of Marriage
(21)
Chapter: The prohibition of disclosing a woman's secrets
(21)
باب تَحْرِيمِ إِفْشَاءِ سِرِّ الْمَرْأَةِ ‏

Abu Sa'id al-Khudri (Allah he pleased with him) reported that Allah's Messenger (may peace be upoin him) said:

The most wicked among the people in the eye of Allah on the Day of judgment is the men who goes to his wife and she comes to him, and then he divulges her secret.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، عَنْ عُمَرَ بْنِ حَمْزَةَ الْعُمَرِيِّ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ سَعْدٍ، قَالَ سَمِعْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ إِنَّ مِنْ أَشَرِّ النَّاسِ عِنْدَ اللَّهِ مَنْزِلَةً يَوْمَ الْقِيَامَةِ الرَّجُلَ يُفْضِي إِلَى امْرَأَتِهِ وَتُفْضِي إِلَيْهِ ثُمَّ يَنْشُرُ سِرَّهَا ‏"‏ ‏.‏
Reference : Sahih Muslim 1437 a
In-book reference : Book 16, Hadith 145
USC-MSA web (English) reference : Book 8, Hadith 3369
  (deprecated numbering scheme)

Abu Sirma al-Khudri (Allah he pleased with him ) reported Allah's Messen- ger (ﷺ) as saying:

The most important of the trusts in the sight of Allah on the Day of judgment is that a man goes to his wife and she goes to him (and the breach of this trust is) that he should divulge her secret Ibn Numair narrates this hadith with a slight change of wording.
وَحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ عُمَرَ، بْنِ حَمْزَةَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ سَعْدٍ، قَالَ سَمِعْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِنَّ مِنْ أَعْظَمِ الأَمَانَةِ عِنْدَ اللَّهِ يَوْمَ الْقِيَامَةِ الرَّجُلَ يُفْضِي إِلَى امْرَأَتِهِ وَتُفْضِي إِلَيْهِ ثُمَّ يَنْشُرُ سِرَّهَا ‏"‏ ‏.‏ وَقَالَ ابْنُ نُمَيْرٍ ‏"‏ إِنَّ أَعْظَمَ ‏"‏ ‏.‏
Reference : Sahih Muslim 1437 b
In-book reference : Book 16, Hadith 146
USC-MSA web (English) reference : Book 8, Hadith 3370
  (deprecated numbering scheme)