Sunan an-Nasa'i 126
سنن النسائي#126Hasanأَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَاصِمٍ، عَنْ زِرٍّ، عَنْ صَفْوَانَ بْنِ عَسَّالٍ، قَالَ رَخَّصَ لَنَا النَّبِيُّ صلى الله عليه وسلم إِذَا كُنَّا مُسَافِرِينَ أَنْ لاَ نَنْزِعَ خِفَافَنَا ثَلاَثَةَ أَيَّامٍ وَلَيَالِيَهُنَّ .
It was narrated that Safwan bin 'Assal said:"The Prophet (ﷺ) granted us a dispensation when traveling, allowing us not to take off our Khuffs for three days and three nights
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Abu Ghuddah, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 1:127