Narrated Abu Huraira:
I heard Allah's Messenger peace be upon him saying, "We (Muslims) are the last (to come) but (will be) the foremost on the Day of Resurrection though the former nations were given the Holy Scriptures before us. And this was their day (Friday) the celebration of which was made compulsory for them but they differed about it. So Allah gave us the guidance for it (Friday) and all the other people are behind us in this respect: the Jews' (holy day is) tomorrow (i.e. Saturday) and the Christians' (is) the day after tomorrow (i.e. Sunday)".
Muslims believe Friday was chosen by Allah as a dedicated day of worship.To the prayer itself, which is shorter than the usual midday prayers, Friday services include a sermon, usually given by a male Muslim clergy member in Muslim majority countries. Muslim men are required to attend Friday prayers as long as they not traveling.