Surah 5. Al-Ma'ida, Ayah 29

Lit., "my sin as well as thy sin". It is evident from several well-authenticated ahadith that if a person dies a violent death not caused, directly or indirectly, by his own sinful actions, his previous sins will be forgiven (the reason being, evidently, that he had no time to repent, as he might have done had he been allowed to live). In cases of unprovoked murder, the murderer is burdened - in addition to the sin of murder - with the sins which his innocent victim might have committed in the past and of which he (the victim) is now absolved: this convincing interpretation of the above verse has been advanced by Mujahid (as quoted by Tabari).

My sin as well as thine. "My sin" has been interpreted as "the sin against me, in that thou slayest me": in that case thy "sin" may mean either "thy crime in committing a murder." or "thy sin against thyself, for the crime causes real loss to thyself in the Hereafter." See the last clause of the next verse.

Abel's speech is full of meaning. He is innocent and God-fearing. To the threat of death held out by the other, he returns a calm reply, aimed at reforming the other. "Surely," he pleads, "if your sacrifice was not accepted, there was something wrong in you, for Allah is just and accepts the sacrifice of the righteous. If this does not deter you, I am not going to retaliate, though there is as much power in me against you as you have against me. I fear my Maker, for I know He cherishes all His Creation. Let me warn you that you are doing wrong. I do not intend even to resist, but do you know what the consequences will be to you? You will be in torment."