Hadith 6.1
Marriage
Abu Sa'id al-Khudri reported God's Messenger as saying, “The most serious breach of trust in God’s sight on the day of resurrection ...” A version has, “Among those who will have the worst position in God’s sight on the day of resurrection is the man who has intercourse with his wife, and she with him, and then spreads her secret.”* * i.e. talks about the subject to others, or tells people about defects or beauties he has found in her. Muslim transmitted it.
وَعَنْ أَبِي سَعِيدٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: إِنَّ أَعْظَمَ الْأَمَانَةِ عِنْدَ اللَّهِ يَوْمَ الْقِيَامَةِ
وَفِي رِوَايَةٍ: إِنَّ مِنْ أَشَرِّ النَّاسِ عِنْدَ اللَّهِ مَنْزِلَةً يَوْمَ الْقِيَامَةِ الرَّجُلُ يُفْضِي إِلَى امْرَأَتِهِ وَتُفْضِي إِلَيْهِ ثمَّ ينشر سرها
Hadith gradings, numbering and translations can differ between editions. For legal rulings or detailed interpretation, consult qualified scholarship and the referenced edition.