One-fifth of Booty to the Cause of Allah (Khumus)
57/4. Chapter:
What has been said regarding the houses of the wives of the Prophet ﷺ and that which were named after them of the houses (e.g., ‘Aishah’s house)
وَقَوْلِ اللَّهِ تَعَالَى: {وَقَرْنَ فِي بُيُوتِكُنَّ} وَ{لاَ تَدْخُلُوا بُيُوتَ النَّبِيِّ إِلاَّ أَنْ يُؤْذَنَ لَكُمْ}.And the Statement of Allah ﷻ: “And stay in your houses, (O wives of the Prophet)…” (V.33:33) And also: “Enter not the Prophet’s houses, unless permission is given to you…” (V.33:53)
Sahih Bukhari
حَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ، حَدَّثَنَا أَنَسُ بْنُ عِيَاضٍ، عَنْ عُبَيْدِ اللَّهِ، عَنْ مُحَمَّدِ بْنِ يَحْيَى بْنِ حَبَّانَ، عَنْ وَاسِعِ بْنِ حَبَّانَ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ ارْتَقَيْتُ فَوْقَ بَيْتِ حَفْصَةَ، فَرَأَيْتُ النَّبِيَّ صلى الله عليه وسلم يَقْضِي حَاجَتَهُ، مُسْتَدْبِرَ الْقِبْلَةِ، مُسْتَقْبِلَ الشَّأْمِ.
Narrated `Abdullah bin `Umar: Once I went upstairs in Hafsa's house and saw the Prophet (ﷺ) answering the call of nature with his back towards the Qibla and facing Sham.
Reference : Sahih al-Bukhari 3102In-book reference : Book 57, Hadith 11USC-MSA web (English) reference : Vol. 4, Book 53, Hadith 334