they who speak in a low voice in the presence of gods apostle have had their hearts tried by god for reverence. there is forgiveness for them and a great reward.
إن الذين يغضون أصواتهم عند رسول الله أولئك الذين امتحن الله قلوبهم للتقوى لهم مغفرة وأجر عظيم