O you who believe (Muslims)! When the call is proclaimed for the Salât (prayer) on Friday (Jumu’ah prayer), come to the remembrance of Allaah and leave off business (and every other thing). That is better for you if you did but know!
Then when the (Jumu’ah) Salât (prayer) is ended, you may disperse through the land, and seek the Bounty of Allaah (by working, etc.), and remember Allaah much: that you may be successful.
[Sûrah Al-Jumu’ah : 9,10]