What was narrated concerning a man washing his wife and a woman washing her husband

It was narrated that ‘Aishah said:

“If I had known then what I know now, no one would have washed the Prophet (ﷺ) but his wives.”

حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا أَحْمَدُ بْنُ خَالِدٍ الْوَهْبِيُّ، حَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ، عَنْ يَحْيَى بْنِ عَبَّادِ بْنِ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ لَوْ كُنْتُ اسْتَقْبَلْتُ مِنَ الأَمْرِ مَا اسْتَدْبَرْتُ مَا غَسَّلَ النَّبِيَّ ـ صلى الله عليه وسلم ـ غَيْرُ نِسَائِهِ ‏.‏

It was narrated that ‘Aishah said:

“The Messenger of Allah (ﷺ) came back from Al-Baqi’ and I had a headache and was saying: ‘O my head!’ He said: ‘Rather, I should say, O my head, O ‘Aishah!’ Then he said: ‘It will not matter if you were to die before me, for I will take care of you, wash you, shroud you, offer the funeral prayer for you and bury you.’”

حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ، حَدَّثَنَا مُحَمَّدُ بْنُ سَلَمَةَ، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنْ يَعْقُوبَ بْنِ عُتْبَةَ، عَنِ الزُّهْرِيِّ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ، عَنْ عَائِشَةَ، قَالَتْ رَجَعَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ مِنَ الْبَقِيعِ فَوَجَدَنِي وَأَنَا أَجِدُ صُدَاعًا فِي رَأْسِي وَأَنَا أَقُولُ وَارَأْسَاهُ فَقَالَ ‏"‏ بَلْ أَنَا يَا عَائِشَةُ وَارَأْسَاهُ ‏"‏ ‏.‏ ثُمَّ قَالَ ‏"‏ مَا ضَرَّكِ لَوْ مِتِّ قَبْلِي فَقُمْتُ عَلَيْكِ فَغَسَّلْتُكِ وَكَفَّنْتُكِ وَصَلَّيْتُ عَلَيْكِ وَدَفَنْتُكِ ‏"‏ ‏.‏