Narrated Aisha, Ummul Mu'minin:

Umarah ibn Ghurab said that his paternal aunt narrated to him that she asked Aisha: What if one of us menstruates and she and her husband have no bed except one? She replied: I relate to you what the Messenger of Allah ﷺ had done.

One night he entered (upon me) while I was menstruating. He went to the place of his prayer, that is, to the place of prayer reserved (for this purpose) in his house. He did not return until I felt asleep heavily, and he felt pain from cold. And he said: Come near me. I said: I am menstruating. He said: Uncover your thighs. I, therefore, uncovered both of my thighs. Then he put his cheek and chest on my thighs and I lent upon he until he became warm and slept.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا عَبْدُ اللَّهِ، - يَعْنِي ابْنَ عُمَرَ بْنِ غَانِمٍ - عَنْ عَبْدِ الرَّحْمَنِ، - يَعْنِي ابْنَ زِيَادٍ - عَنْ عُمَارَةَ بْنِ غُرَابٍ، أَنَّ عَمَّةً، لَهُ حَدَّثَتْهُ أَنَّهَا، سَأَلَتْ عَائِشَةَ قَالَتْ إِحْدَانَا تَحِيضُ وَلَيْسَ لَهَا وَلِزَوْجِهَا إِلاَّ فِرَاشٌ وَاحِدٌ قَالَتْ أُخْبِرُكِ بِمَا صَنَعَ رَسُولُ اللَّهِ ﷺ دَخَلَ لَيْلاً وَأَنَا حَائِضٌ فَمَضَى إِلَى مَسْجِدِهِ - قَالَ أَبُو دَاوُدَ تَعْنِي مَسْجِدَ بَيْتِهِ - فَلَمْ يَنْصَرِفْ حَتَّى غَلَبَتْنِي عَيْنِي وَأَوْجَعَهُ الْبَرْدُ فَقَالَ " ادْنِي مِنِّي " . فَقُلْتُ إِنِّي حَائِضٌ . فَقَالَ " وَإِنْ اكْشِفِي عَنْ فَخِذَيْكِ " . فَكَشَفْتُ فَخِذَىَّ فَوَضَعَ خَدَّهُ وَصَدْرَهُ عَلَى فَخِذَىَّ وَحَنَيْتُ عَلَيْهِ حَتَّى دَفِئَ وَنَامَ .