It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "Bring me water for ablution." So I brought water for ablution, and he (peace and blessings be upon him) performed istinja (cleaning after relieving oneself), then inserted his hand into the soil and rubbed it with it, then washed it and performed ablution, and in ablution wiped over his leather socks (khuffs). I said: "O Messenger of Allah! You did not wash your feet?" He (peace and blessings be upon him) said: "Indeed, when I put on the socks, my feet were pure." That is, at that time he (peace and blessings be upon him) was in a state of ablution.
Hadith Takhrij«اسناده ضعيف، ابان بن عبد الله البجلي في حفظه لين، والراوي عن ابي ھريرة مبھم، ويشھد لمسح الخفين احاديث اخري۔ أخرجه الدارمي: 678، وابويعلي: 6136، والبيھقي: 1/ 107 ، (انظر مسند أحمد ترقيم الرسالة: 8695 ترقیم بيت الأفكار الدولية: 8680»
Brief Explanation
Benefits: … From these ahadith it is understood that for the one who wishes to wipe (masah) over leather socks (khuffayn) during prayer, it is necessary that he wears them while in a state of ablution (wudu).