كتاب الطهارة
1  
The Book of Purification
(120)
Chapter: Not Performing Wudu' When A Man Touches His Wife Without Desire
(120)
باب تَرْكِ الْوُضُوءِ مِنْ مَسِّ الرَّجُلِ امْرَأَتَهُ مِنْ غَيْرِ شَهْوَةٍ
Sunan an-Nasa'i 167
It was narrated that 'Aishah said:
"I remember lying in front of the Messenger of Allah (ﷺ), and the Messenger of Allah (ﷺ) was praying. When he wanted to prostrate he would nudge my foot and I would draw it up (out of the way) until he had finished prostrating."
أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ عُبَيْدِ اللَّهِ، قَالَ سَمِعْتُ الْقَاسِمَ بْنَ مُحَمَّدٍ، يُحَدِّثُ عَنْ عَائِشَةَ، قَالَتْ لَقَدْ رَأَيْتُمُونِي مُعْتَرِضَةً بَيْنَ يَدَىْ رَسُولِ اللَّهِ صلى الله عليه وسلم وَرَسُولُ اللَّهِ صلى الله عليه وسلم يُصَلِّي فَإِذَا أَرَادَ أَنْ يَسْجُدَ غَمَزَ رِجْلِي فَضَمَمْتُهَا إِلَىَّ ثُمَّ يَسْجُدُ ‏.‏
Grade: Sahih (Darussalam)
Reference : Sunan an-Nasa'i 167
In-book reference : Book 1, Hadith 168
English translation : Vol. 1, Book 1, Hadith 167