Friday prayer, is a congregational prayer (salat) that Muslims hold every Friday, just after noon in lieu of dhuhr.
It is mentioned in the Qur’an as:
O you who believe! when the call is made for prayer on Friday, then hasten to the remembrance of God and leave off trading; that is better for you, if you know.
And when the prayer is ended, then disperse in the land and seek of Allah’s bounty, and remember Allah much, that ye may be successful.
The jumu’ah prayer is half the dhuhr prayer, for convenience, preceded by a khutba (a sermon as a technical replacement of the two reduced raka’ahs of the ordinary dhuhr prayer), and followed by a communal prayer, led by the imam. In most cases the khatib also serves as the imam.
The muezzin makes the call to prayer, called the adhan, usually 15-20 minutes prior to the start of Jum’ah. When the khatib takes his place on the minbar, a second adhan is made. The khatib is supposed to deliver two speeches, stopping and sitting briefly between them. In practice, the first speech is longer and contains most of the content. The second speech is very brief and concludes with a du’a, after which the muezzin calls the iqama. This signals the start of the main two rak’at prayer of Jumu’ah.