‘Abdallah b. Mas'ud said that a man asked God’s messenger, what was the greatest sin in God’s sight, to which he replied,“That you should treat anything as equal to God when He has created you."“What next?” he asked, to which he replied,“That you should kill your child for fear that he may eat along with you.”. “What next?" he asked, to which he replied,“That you should commit adultery with your neighbour’s wife." God has revealed words which verify this:“Those who do not invoke another god along with God, or kill one whom God has declared inviolate without a just cause, or commit fornication..." (Bukhari and Muslim.)

‘Abdallah b. ‘Amr reported God’s messenger as saying,“The major sins are associating other objects of worship with God, disobedience to parents, murder, and deliberate perjury (al-yamin al-ghamus)." (Bukhari and Muslim.)

Bukhari transmitted it. Anas’s version has“false witness”* (shahadat al-zur) instead of “deliberate perjury."

Abu Huraira reported God’s messenger as saying,“Avoid the seven noxious things." When his hearers asked,“What are they, messenger of God?" he replied,“Associating anything with God, magic, killing one whom God has declared inviolate without a just cause, devouring usury, consuming the property of an orphan, turning back when the army advances, and slandering chaste women who are believers but indiscreet." (Bukhari and Muslim.)

He also reported God’s messenger as saying,“When one commits fornication he is not a believer, when one steals he is not a believer, when one drinks wine he is not a believer, when one takes plunder on account of which men raise their eyes at him he is not a believer, and when one of you defrauds he is not a believer; so beware, beware!" (Bukhari and Muslim.)

The version of Ibn ‘Abbas contains“When one commits murder he is not a believer.”‘Ikrima said that he asked Ibn 'Abbas how faith could be snatched away from him, and he replied“Thus (interlacing his fingers and then separating them), but if he repents, it will return to him thus,”and he interlaced his fingers. Aba ‘Abdallah1 said that such a one is not a perfect believer and does not possess the light of faith. This is Bukhari's wording.

Abu Huraira reported God's messenger as saying,“There are three signs of a hypocrite.”Muslim added,“Even if he fasts, prays, and asserts that he is a Muslim.”Thereafter both Bukhari and Muslim said,“When he speaks he lies, when he makes a promise he breaks it, and when he is trusted he betrays his trust.”

‘Abdallah b. ‘Amr reported God's messenger as saying,“Four characteristics constitute anyone who possesses them a sheer hypocrite, and anyone who possesses one of them possesses a characteristic of hypocrisy till he abandons it: when he is trusted he betrays his trust, when he talks he lies, when he makes a covenant he acts treacherously, and when he quarrels he deviates from the truth.”(Bukhari and Muslim.)