حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا زَيْدُ بْنُ الْحُبَابِ، عَنِ الضَّحَّاكِ بْنِ عُثْمَانَ، قَالَ أَخْبَرَنِي زَيْدُ بْنُ أَسْلَمَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي سَعِيدٍ الْخُدْرِيِّ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَنْظُرُ الرَّجُلُ إِلَى عَوْرَةِ الرَّجُلِ وَلاَ الْمَرْأَةُ إِلَى عَوْرَةِ الْمَرْأَةِ وَلاَ يُفْضِي الرَّجُلُ إِلَى الرَّجُلِ فِي ثَوْبٍ وَاحِدٍ وَلاَ تُفْضِي الْمَرْأَةُ إِلَى الْمَرْأَةِ فِي الثَّوْبِ الْوَاحِدِ " .
'Abd al-Rahman, the son of Abu Sa'id al-Khudri, reported from his father: The Messenger of Allah (PBUH) said: A man should not see the private parts of another man, and a woman should not see the private parts of another woman, and a man should not lie with another man under one covering, and a woman should not lie with another woman under one covering. Translation Not Available
Book Ref: Sahih Muslim Book 3 Hadith 667
Web Ref: Sahih Muslim Book 3 Hadith 338 a