It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) sent me and Zubair bin Al-Awwam (may Allah be pleased with him), and we were both riding horses. The Prophet (peace be upon him) said: "Keep going until you reach such-and-such a place, Rawdat Khakh. There you will find a woman who has a letter from Hatib bin Abi Balta’ah to the polytheists. Bring it to me." We caught her in the state exactly as the Prophet (peace be upon him) had described, riding a camel of the same kind. We said: "Take out the letter you have." She said: "I have no letter." We searched her and her camel (but found nothing). My companion said: "I think she does not have it." I said: "The Prophet (peace be upon him) did not lie. By the One in Whose hand is my soul, take out the letter or I will strip you naked." She reached towards the place where she tied her lower garment (waistband) and took out the letter. It was wrapped in a woolen cloth. So we presented it to the Prophet (peace be upon him). Sayyiduna Umar (may Allah be pleased with him) said: "He has betrayed Allah, His Messenger (peace be upon him), and the believers. Allow me to strike off his head." The Prophet (peace be upon him) said: "(Hatib!) Why did you do this?" Then Sayyiduna Hatib (may Allah be pleased with him) said: "There is nothing in my heart except faith in Allah. My only intention was to do a favor for those people (the polytheists)." The Prophet (peace be upon him) said: "Umar! He has spoken the truth. Was he not present at Badr? Allah knows the condition of all those who were at Badr, so He said regarding them: Do whatever you wish, Paradise has been made obligatory for you." (Upon hearing this) tears came to the eyes of Sayyiduna Umar (may Allah be pleased with him) and he said: "Allah and His Messenger know best."

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever calls his Muslim brother a disbeliever, then surely one of them returns with it."

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "When a person calls another a disbeliever (kafir), then one of them becomes a disbeliever. If the one who was called a disbeliever is truly (because of his sin) a disbeliever, then he (the accuser) has spoken the truth. But if he is not as he was described, then the burden of that statement will fall upon the one who said it, and he will become a disbeliever."

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Prophet, peace and blessings be upon him, used to seek refuge with Allah from bad judgments and from the laughter of enemies.