Al Jumu'ah, 9 Ayah
62:9
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِذَا نُودِيَ لِلصَّلَوٰةِ مِن يَوۡمِ ٱلۡجُمُعَةِ فَٱسۡعَوۡاْ إِلَىٰ ذِكۡرِ ٱللَّهِ وَذَرُواْ ٱلۡبَيۡعَۚ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ إِن كُنتُمۡ تَعۡلَمُونَ ٩
Yā 'Ayyuhā Al-Ladhīna 'Āmanū 'Idhā Nūdī Lilşşalāati Min Yawmi Al-Jumu`ati Fās`aw 'Ilá Dhikri Al-Lahi Wa Dharū Al-Bay`a ۚ Dhālikum Khayrun Lakum 'In Kuntum Ta`lamūna
O you who have believed, when [the adhan] is called for the prayer on the day of Jumu'ah [Friday], then proceed to the remembrance of Allah and leave trade. That is better for you, if you only knew.