Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that I heard the Messenger of Allah (peace be upon him) say: "Friday is a day of Eid, so do not fast on the day of Friday unless you fast a day before it or a day after it." Imam Abu Bakr (may Allah have mercy on him) says that in this way, the Noble Prophet (peace be upon him) permitted fasting on Saturday if the fasting person also fasted on Friday before it.