Khuzaimah bin Thabit narrated:
"The Prophet (ﷺ) was asked about wiping over the Khuff. So he said: "Three (days) for the traveler, and one day for the resident."
Safwan bin Assal narrated:
'When we were traveling, Allah's Messenger (ﷺ) would order us not to remove our Khuff for three days and nights, except for Janabah, but not for defecating, urinating, and sleep."