The Messenger of Allah (saws) used to say: "O Allah, I seek refuge in Thee from hunger, for it is an evil bed-fellow; and I seek refuge in Thee from treachery, for it is an evil hidden trait."

I heard the Messenger of Allah (saws) say: It is great treachery that you should tell your brother something and have him believe you when you are lying.

I saw `Umar bin Al-Khattab a few days before he was stabbed in Medina. He was standing with Hudhaifa bin Al-Yaman and `Uthman bin Hunaif to whom he said, "What have you done? Do you think that you have imposed more taxation on the land (of As-Swad i.e. 'Iraq) than it can bear?" They replied, "We have imposed on it what it can bear because of its great yield." `Umar again said, "Check whether you have imposed on the land what it can not bear." They said, "No, (we haven't)." `Umar added, "If Allah should keep me alive I will let the widows of Iraq need no men to support them after me." But only four days had elapsed when he was stabbed (to death ). The day he was stabbed, I was standing and there was nobody between me and him (i.e. `Umar) except `Abdullah bin `Abbas. Whenever `Umar passed between the two rows, he would say, "Stand in straight lines." When he saw no defect (in the rows), he would go forward and start the prayer with Takbir. He would recite Surat Yusuf or An-Nahl or the like in the first rak`a so that the people may have the time to Join the prayer. As soon as he said Takbir, I heard him saying, "The dog has killed or eaten me," at the time he (i.e. the murderer) stabbed him. A non-Arab infidel proceeded on carrying a double-edged knife and stabbing all the persons he passed by on the right and left (till) he stabbed thirteen persons out of whom seven died. When one of the Muslims saw that, he threw a cloak on him. Realizing that he had been captured, the non-Arab infidel killed himself, `Umar held the hand of `Abdur-Rahman bin `Auf and let him lead the prayer. Those who were standing by the side of `Umar saw what I saw, but the people who were in the other parts of the Mosque did not see anything, but they lost the voice of `Umar and they were saying, "Subhan Allah! Subhan Allah! (i.e. Glorified be Allah)." `Abdur-Rahman bin `Auf led the people a short prayer. When they finished the prayer, `Umar said, "O Ibn `Abbas! Find out who attacked me." Ibn `Abbas kept on looking here and there for a short time and came to say. "The slave of Al Mughira." On that `Umar said, "The craftsman?" Ibn `Abbas said, "Yes." `Umar said, "May Allah curse him. I did not treat him unjustly. All the Praises are for Allah Who has not caused me to die at the hand of a man who claims himself to be a Muslim. No doubt, you and your father (Abbas) used to love to have more non-Arab infidels in Medina." Al-Abbas had ...