"O you who believe (Muslims)! When the call is proclaimed for the Salât (prayer) on Friday (Jumu‘ah prayer), come to the remembrance of Allâh [Jumu‘ah religious talk (Khutbah) and Salât (prayer)] and leave off business (and every other thing). That is better for you if you did but know!"  Surah Al-Jumu'ah: 62