Surah Al-A'raf Verse 204

وَإِذَا قُرِئَ الْقُرْآنُ فَاسْتَمِعُوا لَهُ وَأَنْصِتُوا لَعَلَّكُمْ تُرْحَمُونَ

So when the Qur'an is recited, then listen to it and pay attention that you may receive mercy