‏الحيض : Hadeeth No:675 Abu al. 'Ala' b. al-Shikhkhir said: The Messenger of Allaah (sallAllaahu alayhi wa sallam) abrogated some of his commands by others, just as the Qur'an abrogates some part with the other....

‏الشعر : Hadeeth No:5610 Sa'd reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: It is better for the belly of any one of you to be stuffed with pus rather than to stuff (one's mind) with poetry....