Sunan an-Nasa'i 128
سنن النسائي#128Sahihأَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا عَبْدُ الرَّزَّاقِ، قَالَ أَنْبَأَنَا الثَّوْرِيُّ، عَنْ عَمْرِو بْنِ قَيْسٍ الْمُلاَئِيِّ، عَنِ الْحَكَمِ بْنِ عُتَيْبَةَ، عَنِ الْقَاسِمِ بْنِ مُخَيْمِرَةَ، عَنْ شُرَيْحِ بْنِ هَانِئٍ، عَنْ عَلِيٍّ، - رضى الله عنه - قَالَ جَعَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم لِلْمُسَافِرِ ثَلاَثَةَ أَيَّامٍ وَلَيَالِيَهُنَّ وَيَوْمًا وَلَيْلَةً لِلْمُقِيمِ يَعْنِي فِي الْمَسْحِ .
It was narrated that 'Ali (may Allah be pleased with him) said:"The Messenger of Allah (ﷺ) set a time limit of three days and three nights for the traveler, and one day and one night for the resident - meaning, with regards to wiping (over the Khuffs)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 1:129