Jundub b. ‘Abdallah reported God’s Messenger as saying that among those who lived before their time there was a man who had a wound and had so little patience to bear it that he took a knife with which he cut off his hand, but the blood did not cease to flow till he died. God most high said, “My servant has tried to outstrip me in taking his life, so I have excluded him from paradise.”
Jabir said that when the Prophet emigrated to Medina at-Tufail b. ‘Amr ad-Dausi did so also accompanied by one of his people who became ill and had so little patience to bear it that he took some arrow heads of his with which he cut his knuckles, and his hands flowed with blood till he died. Then at-Tufail b. ‘Amr saw him in a dream with a fine appearance and saw him covering his hands, so he said to him, “What did your Lord do to you?" He replied, “He forgave me because of my emigration to His prophet.” He asked, “How is it that I see you covering your hands? He replied that it had been said to him, “We will not put right what you have spoilt." At-Tufail told this to the Prophet and he said, “O God, forgive his hands also."
Abu Huraira reported God’s Messenger as saying, “He who throws himself from a mountain and kills himself will be thrown down in the fire of jahannam and remain in it for ever and ever; he who sips poison and kills himself will have his poison in his hand and sip it for ever and ever in the fire of jahannam; and he who kills himself with a piece of iron will have his piece of iron in his hand and will be stabbed with it in his belly in the fire of jahannam for ever and ever.”