“When anyone of you offers the greeting of peace he should say it loud and clear so he will not complain that no one answered his greeting of peace. He may have offered, but no one may have heard it and when any one of you answers the greeting he should say it loud and clear so that the one offering it will not say, ‘I offered them the greeting of peace but no one answered.’ “The Imam then said, ‘Amir al-Mu’minin, Ali ibn abu Talib (a.s.) has said, ‘If you do not become angry you will not be made angry, offer the greeting of peace loud and openly, speak nicely, perform prayer at night when people are sleeping and you will enter paradise in peace.’ Then he read the words of Allah, the Most Majestic, the Most Holy: ‘. . . the Peace, the Protector, the Watchful Guardian. . . .’” ( 59 : 23 )