Hadith: None of you should fast on Friday, unless he fasts a day before it or a day after it

عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: سَمِعْتُ النَّبِيَّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ يَقُولُ:

«لاَ يَصُومَنَّ أَحَدُكُمْ يَوْمَ الجُمُعَةِ، إِلَّا يَوْمًا قَبْلَهُ أَوْ بَعْدَهُ».
[صحيح] - [متفق عليه] - [صحيح البخاري: 1985]

Abu Hurayrah (may Allah be pleased with him) reported: I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: "None of you should fast on Friday, unless he fasts a day before it or a day after it."
[Authentic hadith] - [Narrated by Bukhari & Muslim]

Explanation

The Prophet (may Allah's peace and blessings be upon him) forbade fasting on Friday, except when being coupled with fasting a day before it or a day after it, or when it is part of a regular fast.

Benefits from the Hadith