Sahih Muslim 1437
Sahih Muslim · Book 16: The Book of Marriage · The prohibition of disclosing a woman's secrets
Abu Sirma al-Khudri (Allah he pleased with him ) reported Allah's Messen- ger (ﷺ) as saying:
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 " .
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.