Surah Al-A'raf Verse-204

وَإِذَا قُرِئَ الْقُرْآنُ فَاسْتَمِعُواْ لَهُ وَأَنصِتُواْ لَعَلَّكُمْ تُرْحَمُونَ
So when the Qur'an is recited, then listen to it and pay attention that you may receive mercy.