Ibn ‘Umar reported God’s Messenger as saying, “The perfidious one will have a standard set up for him on the day of resurrection, and announcement will be made that this is the perfidy* of so and so, the son of so and so.”
(Bukhari and Muslim.)
* This is explained as meaning the sign, result, or punishment of his perfidy.
Abu Sa'id reported the Prophet as saying, “Every perfidious one will have a standard at his anus on the day of resurrection.” A version has, “On the day of resurrection every perfidious one will have a standard which will be raised for him according to the amount of his perfidy, and no one is more perfidious than the ruler of a community.”
Abu Burda* told that when the Prophet sent his grandfather Abu Musa and Mu'adh to the Yemen he said, “Make things easy and do not make them difficult; gladden and do not scare; comply with one another and do not disagree.”
(Bukhari and Muslim.)
* This should be Sa'id b. Abu Burda on his father’s authority. C f. Bukhari, Maghazi, 60.