'When we were traveling, Messenger of Allah would order us not to remove our Khuff for three days and nights, except for Janabah, but not for defecating, urinating, and sleep." (Using translation from Tirmidhī 96)
«أَمَرَنَا رَسُولُ اللهِ ﷺ إِذَا كُنَّا فِي سَفَرٍ أَنْ لَا نَنْزِعَ خِفَافَنَا ثَلَاثَةَ أَيَّامٍ وَلَيَالِيَهُنَّ مِنْ بَوْلٍ وَلَا نَوْمٍ وَلَا غَائِطٍ إِلَّا مِنْ جَنَابَةٍ»