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Shiavault - a Vault of Shia Islamic Books The Right to Life in Islam Depriving Oneself of Life is Forbidden (Sanctity of One's Life) A remarkable point in the subject of "right to life" is Islamic law is banning suicide. The Holy Quran explicitly prohibits individuals from depriving themselves of life.
Since the goal of creation and giving life to mankind is his achieving perfection and felicity, therefore and in reality suicide means a retreat from achieving perfection and also a decline and downfall into the valley of failure and loss of mankind.
The Prophet (S) was quoted as saying: "Whoever commits suicide by means of some instrument, he will be tormented on the Resurrection Day by the same tool."[^1] Also according to another narration he has been quoted as saying: "If someone suffocates himself he has put himself in the hell fire and he who hits himself by a spear is in fire."[^2] You should know that sin of killing oneself is Islam is absolute, the same way that killing others is a sin, committing suicide is also a sin and unlawful.
(Quran, 4:30) There are different motives for suicide including: Weak religious beliefs, weak spirituality and religious ethics, excessive tendency or eagerness toward material things including all worldly demands, Insanity (mental disorder), and intolerable physical illness. None of the aforementioned factors or reasons is justifiable in the eyes of Islam for committing such a great sin.
But any goodness or evil (vicious) a man faces during his lifespan stems from a good or an evil deed which is the reward or punishment of that deed. Or it could be a test by God.