25:68Al-Furqaan

This verse was revealed in Mecca:" And they who call not upon another god with Allah and slay not the soul which Allah has forbidden except in the cause of justice" up to the word Muhdana (abased). Thereupon the polytheists said: Islam is of no avail to us for we have made peer with Allah and we killed the soul which Allah had forbidden to do and we committed debauchery, and it was (on this occasion) that Allah, the Exalted and Glorious, revealed this verse:" Except him who repents and believes and does good deeds" up to the end Ibn 'Abbis says: He who enters the fold of Islam and understands its command and then kills the soul there is no repentance for him.

“Whoever meets Allah (SWT) not associating anything in worship with him, and not having shed any blood unlawfully, will enter Paradise.”

Messenger of Allah, which offence is the most grievous in the eye of Allah? He (the Holy Prophet) replied: That you associate a partner with Allah (despite the fact) that He created you. He (the man) said: What next? He (the Holy Prophet) replied: That you kill your child out of fear that he would join you in food. He (the inquirer) said (again): What next? He (the Holy Prophet) replied: That you commit adultery with the wife of your neighbour. And the Almighty and Exalted Lord testified it (with this verse): All those who call not unto another god along with Allah, and slay not any soul which Allah has forbidden, except in the cause of justice, nor commit fornication, and he who does this shall meet a requital of sin (xxv. 68).

Some pagans who committed murders in great number and committed illegal sexual intercourse excessively, came to Muhammad and said, "O Muhammad! Whatever you say and invite people to, is good: but we wish if you could inform us whether we can make an expiration for our (past evil) deeds." So the Divine Verses came: 'Those who invoke not with Allah any other god, not kill such life as Allah has forbidden except for just cause, nor commit illegal sexual intercourse.' (25.68) And there was also revealed:-- 'Say: O My slaves who have transgressed against their souls! Despair not of the Mercy of Allah.' (39.53)

A man said, "O Allah's Messenger (ﷺ)! Which sin is the greatest in Allah's Sight?" The Prophet (ﷺ) said, "To set up a rival unto Allah though He Alone created you . " The man said, "What is next?" The Prophet (ﷺ) said, "To kill your son lest he should share your food with you." The man said, "What is next?" The Prophet said, "To commit illegal sexual intercourse with the wife of your neighbor." So Allah revealed in confirmation of this narration:-- 'And those who invoke not with Allah, any other god. Nor kill, such life as Allah has forbidden except for just cause nor commit illegal sexual intercourse. And whoever does this shall receive the punishment.' (25.68)