Friday is the best day of the week. Imam Bukhari and Muslim reported that Prophet Mohammad (P.B.U.H.) had said, "We (Muslims) came last and yet we are the first on the day of judgment. They have received the books before us (meaning Torah and Injil). We have received the book after them (meaning the Qur’an). Friday was their day to be glorified. However, they disputed on that while Allah had told us Friday is the day to glorify. Thus they will follow us. The Jews glorify Saturday, and the Christians glorify Sunday."

Also reported by Imam Muslim, Abo-Dawod, Al-Nesaii, and Al-Termithi, that Prophet Mohammad (P.B.U.H.) had said, "The best day during which the sun have risen is Friday. It is the Day Adam was created. It is the day when Adam entered paradise and also when he was taken out from it. It is also the day on which the day of judgment takes place."

Muslims are supposed to do the following on Fridays:

Men are obligated to participate in Friday Prayer. Allah (S.W.T.) said in Surat Al-Jumauah, (verse 9), what can be translated as, "O’ you who believe! When the call is proclaimed to Prayer on Friday hasten earnestly to the remembrance of Allah, and leave off business. That is best for you if you but knew."

In addition, prophet Mohammad (P.B.U.H.) had warned from not attending Friday Prayer. Imam Muslim and Ahmad had reported that Prophet Mohammad (P.B.U.H.) said about people who do not attend Friday Prayer, "I wanted to ask a man to lead people in the prayer so that I may go and burn houses of men who did not attend the Friday Prayer with us" He also said reported by Imam Muslim, Ahmad and An-Nesaii, "Either they (meaning people who do not attend the Friday prayer) stop neglecting Friday prayers or Allah will set a seal on their hearts so they can not find the right path again." In another authentic hadith reported by Abu Dawod, Termithi, An-Nesaii, and Ibn-Majah, that the prophet (P.B.U.H.) said, "Who ever does not attend three Friday prayers, (without a valid excuse) Allah will set a seal on his heart"

It is also recommended to increase supplication especially at the last hour of the day since it is the hour when requests are replied by Allah. In an authentic hadith reported by Imam An-Nesaii, Abu-Dawod, and Al-hakim, that the prophet Muhammad (P.B.U.H) said, "Friday has 12 hours, one of which is the hour where cries are granted for Muslim believers. This hour is sought at the last hour after Asar."