يا أَيُّهَا الَّذينَ آمَنوا إِذا نودِيَ لِلصَّلاةِ مِن يَومِ الجُمُعَةِ فَاسعَوا إِلىٰ ذِكرِ اللَّهِ وَذَرُوا البَيعَ ۚ ذٰلِكُم خَيرٌ لَكُم إِن كُنتُم تَعلَمونَ

O you who believe, when the call to prayer is made on Friday, hurry to the remembrance of God, and leave off business. That’s better for you, if only you knew.