It is narrated from Ibrahim (may Allah have mercy on him): When someone wipes over his khuffs (leather socks) and then takes them off, it is as if he has taken off his ablution as well (that is, his ablution is broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1374
Hadith Gradingمحدثین:ضعيف
Hadith Takhrij«ضعيف۔ أخرجه ابن عدي في الكامل 3/396»