إِنَّ الْمُؤْمِنَ أَخُو الْمُؤْمِنِ عَيْنُهُ وَ دَلِيلُهُ لَا يَخُونُهُ وَ لَا يَظْلِمُهُ وَ لَا يَغُشُّهُ وَ لَا يَعِدُهُ عِدَةً فَيُخْلِفَهُ.
“The believer is the brother (in belief) of the believer, his eyes and his guide. He does not violate his trust, does not do injustice to him, does not deceive him and does not promise him only to ignore it later on.’”