‏السلام : Hadeeth No:5473 Jabir reported that Sa'd b. Mu'adh received a wound of the arrow in his vein. Allaah's Messenger (sallAllaahu alayhi wa sallam) cauterised it with a rod and it was swollen, to the Messenger of Allaah (sallAllaahu alayhi wa sallam) did it for the second time....

‏الصلاة : Hadeeth No:1719 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When any one of you gets up at night (for prayer) and his tongue falters in (the recitation) of the Qar'an, and he does not know what he is reciting, he should go to sleep....