The majority of scholars maintained that the khutbah is a condition as well as an element of Friday jumu'ah. They maintained that all things and circumstances, existing at the time the
Prophet used to hold the Friday prayer, should necessarily constitute the conditions for its validity.
O ye who believe! When the call is proclaimed to prayer on Friday (the Day of Assembly), hasten earnestly to the Remembrance of Allah, and leave off business (and traffic): That is best for you if ye but knew!