If one puts on (Khuff) just after performing ablution (ther is no need to wash one's feet again in ablution) (24 hours for non-travellers and three days for travelers)

Sahih al-Bukhari · Book 4 · Hadith 206

حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا زَكَرِيَّاءُ، عَنْ عَامِرٍ، عَنْ عُرْوَةَ بْنِ الْمُغِيرَةِ، عَنْ أَبِيهِ، قَالَ كُنْتُ مَعَ النَّبِيِّ صلى الله عليه وسلم فِي سَفَرٍ، فَأَهْوَيْتُ لأَنْزِعَ خُفَّيْهِ فَقَالَ ‏"‏ دَعْهُمَا، فَإِنِّي أَدْخَلْتُهُمَا طَاهِرَتَيْنِ ‏"‏‏.‏ فَمَسَحَ عَلَيْهِمَا‏.‏

Narrated `Urwa bin Al-Mughira: My father said, "Once I was in the company of the Prophet (ﷺ) on a journey and I dashed to take off his Khuffs (socks made from thick fabric or leather). He ordered me to leave them as he…