The Prophet Muhammad known as Muhammad al-Amin (Muhammad the Trustworthy), during the pre-Islamic period, had an impact on everybody with his straightness ana honesty. He always kept his promises ana pursued his covenants. Nobody could accuse him of being liar and betrayal. On the contrary, even his savage enemies confirmed his straightness and trustworthiness. He personally showed confidence in his religious, political, economic and social life as in every fields and he struggled to establish this feeling of confidence in the society