Language:
كتاب الحيض
6  
Menstrual Periods
(21)
Chapter: Sleeping with a menstruating woman (one's wife) while she is wearing her clothes (that are worn during menses)
(21)
باب النَّوْمِ مَعَ الْحَائِضِ وَهْىَ فِي ثِيَابِهَا
Sahih al-Bukhari 322

Narrated Zainab bint Abi Salama:

Um-Salama said, "I got my menses while I was lying with the Prophet (ﷺ) under a woolen sheet. So I slipped away, took the clothes for menses and put them on. Allah's Messenger (ﷺ) said, 'Have you got your menses?' I replied, 'Yes.' Then he called me and took me with him under the woolen sheet." Um Salama further said, "The Prophet (ﷺ) used to kiss me while he was fasting. The Prophet (ﷺ) and I used to take the bath of Janaba from a single pot."

حَدَّثَنَا سَعْدُ بْنُ حَفْصٍ، قَالَ حَدَّثَنَا شَيْبَانُ، عَنْ يَحْيَى، عَنْ أَبِي سَلَمَةَ، عَنْ زَيْنَبَ ابْنَةِ أَبِي سَلَمَةَ، حَدَّثَتْهُ أَنَّ أُمَّ سَلَمَةَ قَالَتْ حِضْتُ وَأَنَا مَعَ النَّبِيِّ، صلى الله عليه وسلم فِي الْخَمِيلَةِ، فَانْسَلَلْتُ فَخَرَجْتُ مِنْهَا، فَأَخَذْتُ ثِيَابَ حِيضَتِي فَلَبِسْتُهَا، فَقَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ أَنُفِسْتِ ‏"‏‏.‏ قُلْتُ نَعَمْ، فَدَعَانِي فَأَدْخَلَنِي مَعَهُ فِي الْخَمِيلَةِ‏.‏ قَالَتْ وَحَدَّثَتْنِي أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يُقَبِّلُهَا وَهُوَ صَائِمٌ، وَكُنْتُ أَغْتَسِلُ أَنَا وَالنَّبِيُّ صلى الله عليه وسلم مِنْ إِنَاءٍ وَاحِدٍ مِنَ الْجَنَابَةِ‏.‏
Reference : Sahih al-Bukhari 322
In-book reference : Book 6, Hadith 27
USC-MSA web (English) reference : Vol. 1, Book 6, Hadith 319
  (deprecated numbering scheme)