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.