Abu Hurayra said, "There are seven major wrong actions. The first of them is to associate things with Allah, then killing someone, slandering chaste women, and going back to live as a Bedouin after having made hijra."  

عَنْ أَبِي هُرَيْرَةَ قَالَ الْكَبَائِرُ سَبْعٌ أَوَّلُهُنَّ الإِشْرَاكُ بِاللَّهِ وَقَتْلُ النَّفْسِ وَرَمْيُ الْمُحْصَنَاتِ وَالأعْرَابِيَّةُ بَعْدَ الْهِجْرَةِ