Hazrat Abu Saeed Khudri narrates that the Prophet (peace and blessings be upon him) removed his shoes during prayer, so the people also removed their shoes. When he completed the prayer, he asked the people, "Why did you remove your shoes?" They replied, "We saw you remove your shoes, so we also removed ours." He said, "Jibreel came to me and informed me that there was impurity on my shoes. When any of you comes to pray, he should turn his shoes over and look at them; if there is impurity on them, he should wipe it off with the ground and pray in them."