It was narrated that Shuraih bin Hani’ said:
I asked `A`ishah about wiping over the khuff (leather slippers) and she said. Ask ‘Ali, for he knows more that than me; he used to travel with the Messenger of Allah (ﷺ). So I asked ‘Ali (رضي الله عنه) and he said: The Messenger of Allah (ﷺ) said: `For the traveller, three days and nights; for the one who is not travelling one day and night.`
A similar report was narrated from ‘Ali (رضي الله عنه) from The Prophet (ﷺ)