Surah Al-Jumu'ah, ayah 9

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'ayyuhal-ladhīna āmanū idhā nūdiya lis-salawāti min yawmil-jumu'ati fas'aw ilā dhikrillāhi wadharul-bay'a dhālikum khayrul lakum in kuntum ta'lamūn

O you who have believed, when [the adhān] is called for the prayer on the day of Jumuʿah [Friday], then proceed to the remembrance of Allāh and leave trade. That is better for you, if you only knew.