إذا نودي للصلاة من يوم الجمعة. حديث الجمعة :

And since AIIah has forbidden these, jurists of Islam are agreed that after the call has been sounded for the Friday Prayer aII forms of trade, business and worldly occupation become forbidden Note it well: the Prayer of such a one will be no, prayer at all, his zakat will be no zakat at aII, his Hajj no Hajj, his fasting no fasting, and no good done by him will be good, until he repents
Bukhari, Abu Da'ud, Nasa'i, Tabarani 5 The time appointed by the Holy Prophet upon whom be Allah's peace for this Prayer was after the declining of the sun, the same time which is for the Zuhr Prayer

This Command absolutely confirms the obligatory nature of the Friday Prayer.

سورة الجمعة مكتوبة كاملة بالتشكيل
English - Sahih International : 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• Swahili - Al-Barwani : Enyi mlio amini Ikiadhiniwa Sala siku ya Ijumaa nendeni upesi kwenye dhikri ya Mwenyezi Mungu na wacheni biashara Hayo ni bora kwenu lau kama mnajua• Rather in one tradition the words arc to the effect: "AIIah turns the heart of such a one into the heart of a hypocrite
حكم صلاة الجمعة والسنن المتعلقة بها
Hasten to the remembrance of AIlah " does not mean that one should come to the mosque running, but it means that one should make haste for it
يحرم البيع يوم الجمعة بعد الأذان الثاني
Then, when the Imam comes out to deliver the Sermon,, they stop writing the names and turn their attention to the remembrance i
In the tradition of Hadrat Jabir bin 'Abdullah, his words arc to the effect: "Friday Prayer is obligatory on the person who believes in AIlah and the Last Day unless it is a woman, or a traveller, or a slave, or a sick man The call to the Prayer is the same adhan which is being called the world over five times daily in every mosque
In the pre-Islamic days of ignorance the Arabs called it the 'Arabah Day In spite of this express argument anyone who claims that the Shari ah commandments are only those which have been stated in the Qur'an, is not in fact a denier of the Sunnah but of the Qur'an itself

This me hod too was prescribed by' the Holy Prophet upon whom be peace , and this verse of the Qur'an was sent down only to stress its importance and obligatory nature.

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يحرم البيع يوم الجمعة بعد الأذان الثاني
Yang demikian itu lebih baik bagi kalian jika kalian mengetahui bahwasanya hal ini lebih baik, maka kerjakanlah ia
يا أيها الذين آمنوا إذا نودي للصلاة من يوم الجمعة فاسعوا ..
" 7 The call to the Prayer that has been mentioned here, implies the call that is made just before the Sermon
سورة الجمعة مكتوبة كاملة بالتشكيل
The same practice also continued in the time of Hadrat Abu Bakr and Hadrat 'Umar