Hazrat Abu Huraira (may Allah be pleased with him) says that I do not forbid you from fasting on Friday, but I heard the Noble Prophet (peace and blessings be upon him) say: Do not fast on the day of Friday unless you also fast a day before it. And I do not pray in shoes, but I saw the Noble Prophet (peace and blessings be upon him) praying in shoes.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9902