Islam
Islam, like other Abrahamic religions, views suicide as one of the greatest sins and utterly detrimental to one’s spiritual journey. A verse in the Quran instructs;
“And do not kill yourselves, surely God is most Merciful to you.”
— Qur’an, Sura 4(An-Nisa), ayat 29
Most Muslim scholars and clerics consider suicide forbidden and make it a point to include suicide bombing as being equally forbidden despite common misconceptions.
Islamic spiritualism is not attained without maintenance and forbearance of peace. Bukhari and Muslim, two of the most renowned scholars in Islam, state: “He who believes in God and the Last Day should honour his guest, should not harm his neighbour, should speak good or keep quiet.” (Bukhari, Muslim).
This provides an incentive for Muslims to preserve peace in order to attain higher status in the eyes of God. This applies to non-Muslims as well as Muslims as seen in the following quote by
Prophet Muhammad (SAW): “Beware! Whoever is cruel and hard on a non-Muslim minority, or curtails their rights, or burdens them with more than they can bear, or takes anything from them against their free will; I (Prophet Muhammad) will complain against the person on the Day of Judgment.”
(Abu Dawud) This puts suicide bombing and suicide into proper perspective within Islamic traditions, ultimately denouncing suicide of any form.
Often cited is the aforementioned verse in the Qur’an as a clear commandment forbidding suicide. Some Shafii scholars even classify suicide as an unpardonable sin, the equivalent of eternal sin in Christianity.[improper synthesis?]
The prohibition of suicide has also been recorded and commonly accepted to be authentic statements of hadith, (sayings of Muhammad (SAW). For example:[improper synthesis?]
Narrated Abu Huraira: The Prophet (SAW) said, “He who commits suicide by throttling shall keep on throttling himself in the Hell Fire (forever) and he who commits suicide by stabbing himself shall keep on stabbing himself in the Hell-Fire.”
—Sahih al-Bukhari, 2:23:446
Narrated Abu Huraira: The Prophet (SAW) said, “Whoever purposely throws himself from a mountain and kills himself, will be in the (Hell) Fire falling down into it and abiding therein perpetually forever; and whoever drinks poison and kills himself with it, he will be carrying his poison in his hand and drinking it in the (Hell) Fire wherein he will abide eternally forever; and whoever kills himself with an iron weapon, will be carrying that weapon in his hand and stabbing his abdomen with it in the (Hell) Fire wherein he will abide eternally forever.”
— Sahih al-Bukhari, 7:71:670