http://wikiless.i2p/wiki/Zuhr_prayer?lang=en
It is observed after Fajr and before Asr , between the zenith of noon and sunset , and contains 4 rak'a (units). [ 2 ] On Friday, the Zuhr prayer is replaced or preceded by Friday prayer ( jum'a ) which is obligatory for Muslim men who are above the age of puberty and meet certain requirements to pray in congregation either in a mosque or with a group of Muslims. [ 3 ] The sermon is delivered by the imam .