‏الجهاد والسير‏ : Hadeeth No:4426 It has been narrated on the authority of Jundub b. Sufyan who said: A finger of the Messenger of Allaah (sallAllaahu alayhi wa sallam) was wounded in one of the encounters He said: Thou art just a little finger which has bled, and what thou hast experienced is in the cause of Allaah....

‏الحيض : Hadeeth No:710 Abdullah b. Abbas said: I heard the Prophet of Allaah (sallAllaahu alayhi wa sallam) say: When the skin is tanned it becomes purified....