Sahih Muslim 89
Sahih Muslim · Book 1: The Book of Faith · The major sins and the most serious of them
It is reported on the authority of Abu Huraira that the Messenger of Allah (ﷺ) observed:
حَدَّثَنِي هَارُونُ بْنُ سَعِيدٍ الأَيْلِيُّ ، حَدَّثَنَا ابْنُ وَهْبٍ ، قَالَ حَدَّثَنِي سُلَيْمَانُ بْنُ بِلاَلٍ ، عَنْ ثَوْرِ بْنِ زَيْدٍ ، عَنْ أَبِي الْغَيْثِ ، عَنْ أَبِي هُرَيْرَةَ ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " اجْتَنِبُوا السَّبْعَ الْمُوبِقَاتِ " . قِيلَ يَا رَسُولَ اللَّهِ وَمَا هُنَّ قَالَ " الشِّرْكُ بِاللَّهِ وَالسِّحْرُ وَقَتْلُ النَّفْسِ الَّتِي حَرَّمَ اللَّهُ إِلاَّ بِالْحَقِّ وَأَكْلُ مَالِ الْيَتِيمِ وَأَكْلُ الرِّبَا وَالتَّوَلِّي يَوْمَ الزَّحْفِ وَقَذْفُ الْمُحْصَنَاتِ الْغَافِلاَتِ الْمُؤْمِنَاتِ " .
Avoid the seven noxious things. It was said (by the hearers): What are they, Messenger of Allah? He (the Holy Prophet) replied: Associating anything with Allah, magic, killing of one whom God has declared inviolate without a just cause, consuming the property of an orphan, and consuming of usury, turning back when the army advances, and slandering chaste women who are believers, but unwary.