‏الصلاة : Hadeeth No:1726 Ibn Mas'ud reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Wretched is the man who says: I forgot such and such a sura, or I forget such and such a verse, but he has been made to forget....

‏الصيد والذبائح وما يؤكل من الحيوان‏ : Hadeeth No:4747 This hadith has been transmitted on the authority of Abu Tha'laba al- Khushani with a slight variation of (words): He (the Prophet) said in regard to the game killed by (a trained) dog: Eat after three days provided it has not gone rotten....