Who should you not speak loudly around?
Muhammad
O ye who believe! Be not forward in the presence of Allah and His messenger ...
Lift not up your voices above the voice of the Prophet, nor shout when speaking to him as ye shout one to another ...
Lo! they who subdue their voices in the presence of the messenger of Allah, those are they whose hearts Allah hath proven unto righteousness.
Theirs will be forgiveness and immense reward.
49:1
