Musnad Ahmad 906, 907
It was narrated that Shuraih bin Hani` said:
I asked `A`ishah about wiping over the khuffain [leather slippers]. She said: Go to ‘Ali, for he knows more about that than me. So I went to `Ali (رضي الله عنه) and asked him about wiping over the khuffain. He said: The Messenger of Allah (ﷺ) used to tell us to wipe over the khuffain for one day and night, and for the traveller it is three [days and nights].


Yazeed told us: Hajjaj narrated to us and attributed it to the Prophet (ﷺ).
حَدَّثَنَا أَبُو مُعَاوِيَةَ، حَدَّثَنَا الْأَعْمَشُ، عَنِ الْحَكَمِ، عَنِ الْقَاسِمِ بْنِ مُخَيْمِرَةَ، عَنْ شُرَيْحِ بْنِ هَانِئٍ، قَالَ سَأَلْتُ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا عَنْ الْمَسْحِ فَقَالَتْ ائْتِ عَلِيًّا رَضِيَ اللَّهُ عَنْهُ فَهُوَ أَعْلَمُ بِذَلِكَ مِنِّي قَالَ فَأَتَيْتُ عَلِيًّا رَضِيَ اللَّهُ عَنْهُ فَسَأَلْتُهُ عَنْ الْمَسْحِ عَلَى الْخُفَّيْنِ قَالَ فَقَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَأْمُرُنَا أَنْ نَمْسَحَ عَلَى الْخُفَّيْنِ يَوْمًا وَلَيْلَةً وَلِلْمُسَافِرِ ثَلَاثًا.
حَدَّثَنَا يَزِيدُ أَنْبَأَنَا حَجَّاجٌ رَفَعَهُ‏.‏