"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!" -- [The Qur'an, Surah Al-Jumuah (62):9]