Chapter 7, Verse 204, The heights
سورة الأعراف
وَإِذَا قُرِئَ ٱلۡقُرۡءَانُ فَٱسۡتَمِعُواْ لَهُۥ وَأَنصِتُواْ لَعَلَّكُمۡ تُرۡحَمُونَ
So, when the Quran is recited, listen to it, and be silent that you may receive mercy. [i.e. during the compulsory congregational prayers when the Imam (of a mosque) is leading the prayer (except Surat Al-Fatiha), and also when he is delivering the friday-prayer Khutbah]. [Tafsir At-Tabari, Vol. 9, Pages 162-4]
Chapter 37, Verse 165, Those who set the ranks
سورة الصافات
وَإِنَّا لَنَحۡنُ ٱلصَّآفُّونَ
Verily, we (angels), we stand in rows for the prayers (as you Muslims stand in rows for your prayers);
Chapter 70, Verse 22, The Ascending stairways
سورة المعارج
إِلَّا ٱلۡمُصَلِّينَ
Except those devoted to Salat (prayers)
Chapter 85, Verse 3, The Mansions of the stars
سورة البروج
وَشَاهِدٖ وَمَشۡهُودٖ
And by the witnessing day (i.e. friday), and by the witnessed day [i.e. the day of 'Arafat (Hajj) the ninth of Dhul-Hijjah];
Chapter 87, Verse 15, The Most High
سورة الأعلى
وَذَكَرَ ٱسۡمَ رَبِّهِۦ فَصَلَّىٰ
And remembers (glorifies) the Name of his Lord (worships none but Allah), and prays (five compulsory prayers and Nawafil additional prayers).
